Standard Lemma guide

essential

adj · noun · 16 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Canada, UK: /ɪˈsɛn.ʃəl/
  • US: /ɪˈsɛn.ʃəl/
  • US: /əˈsɛn.tʃəl/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: EH0 S EH1 N SH AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: IY0 S EH1 N SH AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Necessary.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: indispensable, basic, essential, necessar, necessary, needed, prerequisite, required, requisite

Antonyms: accidental, accessorial, incidental, unnecessary, unneeded

2

adj

Meaning 2

Very important; of high importance.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: crucial, big, central, consequential, critical, epochful, essential, extraordinary, fateful, fatefraught, fatesome, heavy, pivotal, high on the totem pole, historic, innegligible, key, life-or-death, meaningful, necessary, noted, noticeable, observable, outstanding, paramount, pertinent, relevant, remarkable, salient, significant, unignorable, valuable, vital, weighty

Antonyms: unimportant, base, contemptible, floccinaucinihilipilificatious, foolish, for the birds, futile, frivolous, idle, ignorable, immaterial, inconsequential, inconsiderable, indifferent, insignificant, like a fart in a windstorm, meager, mean, minor, miserable, negligible, nothingburger, nondescript, null, paltry, petty, picayune, picayunish, piddling, piddly, pissant, pissass, piteous, pitiful, pointless, silly, simple, slight, ticky-tacky, tin-pot, trifling, trivial, two-bit, unweighty, vain, worthless, wretched

3

adj

Meaning 3

Necessary for survival but not synthesized by the organism, thus needing to be ingested.

Definition source: English Wiktionary via Wiktextract

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Being in the basic form; showing its essence.

Definition source: English Wiktionary via Wiktextract

Examples

  • Don’t mind him being grumpy. That’s the essential Fred.

Meaning relationships

Synonyms: built-in, essential, immanent, inborn, resident, inbuilt, infused, ingrained, inherent, integral, intrinsic, inwrought, radical, austere, bare, bare-bones, bargain, basic, cheap, default, discreet, economy, elemental, elementary, foundational, fundamental, incomplex, light, modest, no-frills, plain, pure, restrained, rudimentary, run-of-the-mill, simple, slimline, spartan, standard, stripped down, stripped, uncomplicated, unembellished, uninvolved, unmodified, unvarnished, vanilla

Antonyms: adscititious, accidental, external, extraneous, extrinsic

5

adj

Meaning 5

Really existing; existent.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: essential, existent, existing, extant

Antonyms: absent, beingless, extinct, inessential, inexistent, nonexistent, null, zilch

6

adj

Meaning 6

Such that each complementary region is irreducible, the boundary of each complementary region is incompressible by disks and monogons in the complementary region, and no leaf is a sphere or a torus bounding a solid torus in the manifold.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

adj

Meaning 7

Idiopathic.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, sciences

Examples

  • essential blepharospasm

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

adj

Meaning 8

Having the nature of essence; not physical.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

A necessary ingredient.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: must-have

Antonyms: none provided

10

noun

Meaning 10

A fundamental ingredient.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

adjective

Meaning 11

defining rights and duties as opposed to giving the rules by which rights and duties are established

Definition source: Princeton WordNet 3.0

Examples

  • substantive law

Meaning relationships

Synonyms: substantive

Antonyms: none provided

12

adjective

Meaning 12

basic and fundamental

Definition source: Princeton WordNet 3.0

Examples

  • the essential feature

Meaning relationships

Synonyms: none provided

Antonyms: inessential

13

adjective

Meaning 13

being or relating to or containing the essence of a plant etc

Definition source: Princeton WordNet 3.0

Examples

  • essential oil

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

adjective satellite

Meaning 14

of the greatest importance

Definition source: Princeton WordNet 3.0

Examples

  • the all-important subject of disarmament
  • crucial information
  • in chess cool nerves are of the essence

Meaning relationships

Synonyms: all-important(a), all important(p), crucial, of the essence(p)

Antonyms: none provided

15

adjective satellite

Meaning 15

absolutely necessary; vitally necessary

Definition source: Princeton WordNet 3.0

Examples

  • essential tools and materials
  • funds essential to the completion of the project
  • an indispensable worker

Meaning relationships

Synonyms: indispensable

Antonyms: none provided

16

noun

Meaning 16

anything indispensable

Definition source: Princeton WordNet 3.0

Examples

  • food and shelter are necessities of life
  • the essentials of the good life
  • allow farmers to buy their requirements under favorable conditions
  • a place where the requisites of water fuel and fodder can be obtained

Meaning relationships

Synonyms: necessity, requirement, requisite, necessary

Antonyms: inessential

Broader terms: thing

Narrower terms: desideratum, must, need, want

History

Etymology

From Late Latin essentiālis, from Latin essentia (“being, essence”).

Across languages

Translations

170 source translations are retained for this English entry.

  • Azerbaijani: labüd — necessary
  • Azerbaijani: zəruri — necessary
  • Azerbaijani: vacib — necessary
  • Belarusian: неабхо́дны (njeabxódny) — necessary
  • Bengali: প্রয়োজন (proẏōjon) — necessary
  • Bengali: ফরজ (phoroj) — necessary
  • Bengali: দরকার (dorkar) — necessary
  • Bulgarian: необходи́м (neobhodím) — necessary
  • Catalan: essencial — necessary
  • Chinese Mandarin: 必要 (bìyào) — necessary
  • Chinese Mandarin: 不可缺的 (bùkě quē de) — necessary
  • Chinese Mandarin: 必備 /必备 (bìbèi) — necessary
  • Czech: nepostradatelný — necessary
  • Czech: esenciální — necessary
  • Czech: nezbytný — necessary
  • Czech: nevyhnutelný — necessary
  • Dutch: essentieel — necessary
  • Dutch: onontbeerlijk — necessary
  • Dutch: wezenlijk — necessary
  • Dutch: noodzakelijk — necessary
  • Dutch: nodig — necessary
  • Dutch: onmisbaar — necessary
  • Esperanto: esenca — necessary
  • Estonian: vajalik — necessary
  • Finnish: olennainen — necessary
  • Finnish: tärkeä — necessary
  • Finnish: tarpeellinen — necessary
  • Galician: esencial — necessary
  • Georgian: აუცილებელი (aucilebeli) — necessary
  • Georgian: არსებითი (arsebiti) — necessary
  • German: essenziell — necessary
  • German: notwendig — necessary
  • German: unverzichtbar — necessary
  • Hindi: आवश्यक (āvaśyak) — necessary
  • Hindi: अनिवार्य (anivārya) — necessary
  • Indonesian: esensial — necessary
  • Irish: riachtanach — necessary
  • Italian: necessario — necessary
  • Italian: indispensabile — necessary
  • Japanese: 不可欠な (fukaketsu na) — necessary
  • Korean: 필수적인 (pilsujeogin) — necessary
  • Maltese: essenzjali — necessary
  • Eastern Mari: тӱҥ (tüŋ) — necessary
  • Norwegian Bokmål: essensiell — necessary
  • Norwegian Nynorsk: essensiell — necessary
  • Polish: niezbędny — necessary
  • Portuguese: essencial — necessary
  • Romanian: necesar — necessary
  • Russian: необходи́мый (neobxodímyj) — necessary
  • Scottish Gaelic: deatamach — necessary
  • Scottish Gaelic: riatanach — necessary
  • Slovak: nutný — necessary
  • Slovene: bistven — necessary
  • Slovene: nujen — necessary
  • Spanish: esencial — necessary
  • Spanish: menester — necessary
  • Swedish: nödvändig — necessary
  • Tamil: அவசியமான (avaciyamāṉa) — necessary
  • Ukrainian: необхі́дний (neobxídnyj) — necessary
  • Welsh: angenrheidiol — necessary
  • Azerbaijani: vacib — of high importance
  • Azerbaijani: əhəmiyyətli — of high importance
  • Belarusian: ва́жны (vážny) — of high importance
  • Belarusian: істо́тны (istótny) — of high importance
  • Bengali: অতি জরুরি (oti joruri) — of high importance
  • Bulgarian: ва́жен (vážen) — of high importance
  • Bulgarian: съще́ствен (sǎštéstven) — of high importance
  • Catalan: essencial — of high importance
  • Chinese Mandarin: 要素 (yàosù) — of high importance
  • Chinese Mandarin: 切要 (qièyào) — of high importance
  • Czech: zásadní — of high importance
  • Czech: esenciální — of high importance
  • Czech: nejpodstatnější — of high importance
  • Czech: nejdůležitější — of high importance
  • Czech: hlavní — of high importance
  • Dutch: essentieel — of high importance
  • Dutch: onontbeerlijk — of high importance
  • Dutch: wezenlijk — of high importance
  • Dutch: belangrijk — of high importance
  • Estonian: oluline — of high importance
  • Finnish: olennainen — of high importance
  • Finnish: välttämätön — of high importance
  • Finnish: elintärkeä — of high importance
  • Finnish: oleellinen — of high importance
  • French: indispensable — of high importance
  • Georgian: აუცილებელი (aucilebeli) — of high importance
  • Georgian: არსებითი (arsebiti) — of high importance
  • German: wesentlich — of high importance
  • German: unentbehrlich — of high importance
  • German: unverzichtbar — of high importance
  • Hindi: विशिष्ट (viśiṣṭ) — of high importance
  • Ido: esencala — of high importance
  • Indonesian: esensial — of high importance
  • Italian: essenziale — of high importance
  • Italian: fondamentale — of high importance
  • Japanese: 肝要 (kan'yō) — of high importance
  • Maltese: essenzjali — of high importance
  • Māori: waiwai — of high importance
  • Eastern Mari: тӱҥ (tüŋ) — of high importance
  • Polish: zasadniczy — of high importance
  • Portuguese: essencial — of high importance
  • Romanian: esențial — of high importance
  • Romanian: important — of high importance
  • Russian: ва́жный (vážnyj) — of high importance
  • Russian: суще́ственный (suščéstvennyj) — of high importance
  • Scottish Gaelic: deatamach — of high importance
  • Scottish Gaelic: riatanach — of high importance
  • Slovak: kľúčový — of high importance
  • Slovene: bistven — of high importance
  • Swedish: essentiell — of high importance
  • Tamil: இன்றியமையாத (iṉṟiyamaiyāta) — of high importance
  • Ukrainian: важли́вий (važlývyj) — of high importance
  • Ukrainian: істо́тний (istótnyj) — of high importance
  • Welsh: hanfodol — of high importance
  • Danish: essentiel — needing to be ingested
  • German: essentiell — needing to be ingested
  • Indonesian: esensial — needing to be ingested
  • Slovak: esenciálny — needing to be ingested
  • Bengali: মৌলিক (mōulik) — in basic form
  • Bulgarian: осно́вен (osnóven) — in basic form
  • Catalan: essencial — in basic form
  • Chinese Mandarin: 精華的 /精华的 (jīnghuá de) — in basic form
  • Dutch: essentieel — in basic form
  • Dutch: wezenlijk — in basic form
  • Dutch: echt — in basic form
  • Dutch: werkelijk — in basic form
  • Finnish: perusluonteinen — in basic form
  • Finnish: normaali — in basic form
  • French: essentiel — in basic form
  • French: fondamental — in basic form
  • German: wirklich — in basic form
  • German: eigentlich — in basic form
  • German: fundamental — in basic form
  • Hindi: मौलिक (maulik) — in basic form
  • Indonesian: esensial — in basic form
  • Italian: essenziale — in basic form
  • Italian: sobrio — in basic form
  • Japanese: 肝心な (kanjin na) — in basic form
  • Maltese: essenzjali — in basic form
  • Polish: podstawowy — in basic form
  • Portuguese: essencial — in basic form
  • Portuguese: fundamental — in basic form
  • Romanian: de bază — in basic form
  • Romanian: fundamental — in basic form
  • Russian: основно́й (osnovnój) — in basic form
  • Russian: ба́зовый (bázovyj) — in basic form
  • Russian: фундамента́льный (fundamentálʹnyj) — in basic form
  • Ukrainian: основни́й (osnovnýj) — in basic form
  • Chinese Mandarin: 必要的 (bìyào de) — necessary ingredient
  • Czech: nezbytnost — necessary ingredient
  • Finnish: tarpeellinen ainesosa — necessary ingredient
  • German: unverzichtbar — necessary ingredient
  • German: [cook.) Zutat — necessary ingredient
  • German: must-have — necessary ingredient
  • German: unverzichtbarer Bestandteil — necessary ingredient
  • German: notwendiger Inhaltsstoff — necessary ingredient
  • Greek: ουσιαστικός (ousiastikós) — necessary ingredient
  • Greek: ουσιώδης (ousiódis) — necessary ingredient
  • Slovak: esencia — necessary ingredient
  • Chinese Mandarin: 基本的 (jīběn de) — fundamental ingredient
  • Czech: podstata — fundamental ingredient
  • Czech: jádro — fundamental ingredient
  • Czech: esence — fundamental ingredient
  • Dutch: essentiële — fundamental ingredient
  • Finnish: olennainen ainesosa — fundamental ingredient
  • German: Grundbestandteil — fundamental ingredient
  • Greek: ουσιαστικός (ousiastikós) — fundamental ingredient
  • Greek: ουσιώδης (ousiódis) — fundamental ingredient
  • Greek: στοιχειώδης (stoicheiódis) — fundamental ingredient
  • Slovak: esencia — fundamental ingredient
Real reading context

essential in complete knowledge articles