Standard Lemma guide

spontaneous

adj · 8 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.

  • Received-Pronunciation: /spɒnˈteɪ.ni.əs/
  • US: /spɑnˈteɪ.ni.əs/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -eɪniəs
  • CMU ARPABET: S P AA0 N T EY1 N IY0 AH0 S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Self-directed; happening or acting without external cause or instigation; proceeding from natural feeling, temperament, or momentary impulse.

Definition source: English Wiktionary via Wiktextract

Examples

  • He made a spontaneous offer of help.

Meaning relationships

Synonyms: autonomous, automatic, involuntary, natural, unforced

Antonyms: induced, stimulated, voluntary

2

adj

Meaning 2

Done by one's own free choice, or without planning.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: impulsive, extemporaneous, unpremeditated, unprompted

Antonyms: calculated, deliberate, planned, premeditated

3

adj

Meaning 3

Controlled and directed internally; self-active; spontaneous movement characteristic of living things.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Produced without being planted or without human cultivation or labor.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adj

Meaning 5

Sudden, without warning.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adj

Meaning 6

Said or done without prior planning or prior writing.

Definition source: English Wiktionary via Wiktextract

Examples

  • He made a spontaneous remarks in the court.

Meaning relationships

Synonyms: unwritten, abrupt, precipitous, subitaneous, precipitant, precipitate, spontaneous, sudden, suddent

Antonyms: none provided

7

adjective

Meaning 7

happening or arising without apparent external cause

Definition source: Princeton WordNet 3.0

Examples

  • spontaneous laughter
  • spontaneous combustion
  • a spontaneous abortion

Meaning relationships

Synonyms: self-generated

Antonyms: induced

8

adjective satellite

Meaning 8

said or done without having been planned or written in advance

Definition source: Princeton WordNet 3.0

Examples

  • he made a few ad-lib remarks

Meaning relationships

Synonyms: ad-lib, unwritten

Antonyms: none provided

History

Etymology

Etymology tree Latin sponte Proto-Indo-European *-nós Proto-Italic *-nos Latin -nus Latin -ānus Proto-Indo-European *-yósder. Proto-Indo-European *-éyos Proto-Italic *-ejos Proto-Italic *-eos Latin -eus Latin -āneus Late Latin spontāneuslbor. English spontaneous Learned borrowing from Late Latin spontāneus.

Across languages

Translations

109 source translations are retained for this English entry.

  • Assamese: স্বতঃস্ফুৰ্ট (sotohsphurt) — self generated; happening without any apparent external cause
  • Bulgarian: самопроизво́лен (samoproizvólen) — self generated; happening without any apparent external cause
  • Catalan: espontani — self generated; happening without any apparent external cause
  • Chinese Mandarin: 自发的 — self generated; happening without any apparent external cause
  • Czech: spontánní — self generated; happening without any apparent external cause
  • Dutch: spontaan — self generated; happening without any apparent external cause
  • Esperanto: spontanea — self generated; happening without any apparent external cause
  • Esperanto: spontana — self generated; happening without any apparent external cause
  • Finnish: spontaani — self generated; happening without any apparent external cause
  • French: spontané — self generated; happening without any apparent external cause
  • French: volontaire — self generated; happening without any apparent external cause
  • Galician: ventureiro — self generated; happening without any apparent external cause
  • German: spontan — self generated; happening without any apparent external cause
  • Greek: αυθόρμητος (afthórmitos) — self generated; happening without any apparent external cause
  • Greek: εθελοντικός (ethelontikós) — self generated; happening without any apparent external cause
  • Ancient Greek: αὐτόματος (autómatos) — self generated; happening without any apparent external cause
  • Hungarian: spontán — self generated; happening without any apparent external cause
  • Italian: spontaneo — self generated; happening without any apparent external cause
  • Latin: spontāneus — self generated; happening without any apparent external cause
  • Macedonian: спо́нтан (spóntan) — self generated; happening without any apparent external cause
  • Malay: spontan — self generated; happening without any apparent external cause
  • Māori: tene — self generated; happening without any apparent external cause
  • Norwegian Bokmål: spontan — self generated; happening without any apparent external cause
  • Norwegian Nynorsk: spontan — self generated; happening without any apparent external cause
  • Polish: spontaniczny — self generated; happening without any apparent external cause
  • Polish: samorzutny — self generated; happening without any apparent external cause
  • Portuguese: espontâneo — self generated; happening without any apparent external cause
  • Romanian: spontan — self generated; happening without any apparent external cause
  • Russian: спонта́нный (spontánnyj) — self generated; happening without any apparent external cause
  • Russian: самопроизво́льный (samoproizvólʹnyj) — self generated; happening without any apparent external cause
  • Serbo-Croatian: spȍntān — self generated; happening without any apparent external cause
  • Spanish: espontáneo — self generated; happening without any apparent external cause
  • Swedish: spontan — self generated; happening without any apparent external cause
  • Tagalog: kusa — self generated; happening without any apparent external cause
  • Turkish: kendiliğinden — self generated; happening without any apparent external cause
  • Turkish: spontan — self generated; happening without any apparent external cause
  • Ukrainian: спонта́нний (spontánnyj) — self generated; happening without any apparent external cause
  • Ukrainian: мимові́льний (mymovílʹnyj) — self generated; happening without any apparent external cause
  • Bulgarian: спонтанен (spontanen) — done by one's own free choice, or without planning
  • Czech: spontánní — done by one's own free choice, or without planning
  • Finnish: spontaani — done by one's own free choice, or without planning
  • Finnish: oma-aloitteinen — done by one's own free choice, or without planning
  • Finnish: omaehtoinen — done by one's own free choice, or without planning
  • French: spontané — done by one's own free choice, or without planning
  • Galician: espontáneo — done by one's own free choice, or without planning
  • German: spontan — done by one's own free choice, or without planning
  • Greek: αυθόρμητος (afthórmitos) — done by one's own free choice, or without planning
  • Greek: αβίαστος (avíastos) — done by one's own free choice, or without planning
  • Hungarian: spontán — done by one's own free choice, or without planning
  • Italian: spontaneo — done by one's own free choice, or without planning
  • Latin: extemporālis — done by one's own free choice, or without planning
  • Macedonian: добро́волен (dobróvolen) — done by one's own free choice, or without planning
  • Māori: tene — done by one's own free choice, or without planning
  • Polish: spontaniczny — done by one's own free choice, or without planning
  • Portuguese: espontâneo — done by one's own free choice, or without planning
  • Romanian: spontan — done by one's own free choice, or without planning
  • Russian: доброво́льный (dobrovólʹnyj) — done by one's own free choice, or without planning
  • Scottish Gaelic: saor-thoileach — done by one's own free choice, or without planning
  • Serbo-Croatian: spȍntān — done by one's own free choice, or without planning
  • Swedish: spontan — done by one's own free choice, or without planning
  • Assamese: সহজাত (xohozat) — proceeding from natural feeling or native tendency without external constraint
  • Bulgarian: непринуден (neprinuden) — proceeding from natural feeling or native tendency without external constraint
  • Catalan: espontani — proceeding from natural feeling or native tendency without external constraint
  • Czech: spontánní — proceeding from natural feeling or native tendency without external constraint
  • French: spontané — proceeding from natural feeling or native tendency without external constraint
  • Greek: αυθόρμητος (afthórmitos) — proceeding from natural feeling or native tendency without external constraint
  • Greek: πηγαίος (pigaíos) — proceeding from natural feeling or native tendency without external constraint
  • Greek: ενστικτώδης (enstiktódis) — proceeding from natural feeling or native tendency without external constraint
  • Macedonian: непри́нуден (neprínuden) — proceeding from natural feeling or native tendency without external constraint
  • Māori: tene — proceeding from natural feeling or native tendency without external constraint
  • Serbo-Croatian: spȍntān — proceeding from natural feeling or native tendency without external constraint
  • Spanish: espontáneo — proceeding from natural feeling or native tendency without external constraint
  • Swedish: spontan — proceeding from natural feeling or native tendency without external constraint
  • Bulgarian: спонтанен (spontanen) — arising from a momentary impulse
  • Catalan: espontani — arising from a momentary impulse
  • Czech: impulzivní — arising from a momentary impulse
  • Finnish: impulsiivinen — arising from a momentary impulse
  • French: impulsif — arising from a momentary impulse
  • Greek: παρορμητικός (parormitikós) — arising from a momentary impulse
  • Greek: αυθόρμητος (afthórmitos) — arising from a momentary impulse
  • Macedonian: спо́нтан (spóntan) — arising from a momentary impulse
  • Māori: ohia — arising from a momentary impulse
  • Serbo-Croatian: spȍntān — arising from a momentary impulse
  • Serbo-Croatian: ȉmpulzīvan — arising from a momentary impulse
  • Spanish: espontáneo — arising from a momentary impulse
  • Swedish: spontan — arising from a momentary impulse
  • French: réflexe — controlled and directed internally
  • Greek: ακούσιος (akoúsios) — controlled and directed internally
  • Swedish: reflexmässig — controlled and directed internally
  • Bulgarian: естествен (estestven) — produced without being planted or without human labor
  • Finnish: luonnollinen — produced without being planted or without human labor
  • French: indigène — produced without being planted or without human labor
  • French: endémique — produced without being planted or without human labor
  • Galician: ventureiro — produced without being planted or without human labor
  • Macedonian: при́роден (príroden) — produced without being planted or without human labor
  • Finnish: spontaani — not apparently contrived or manipulated
  • French: naturel — not apparently contrived or manipulated
  • French: spontané — not apparently contrived or manipulated
  • Greek: αυθόρμητος (afthórmitos) — not apparently contrived or manipulated
  • Greek: φυσικός (fysikós) — not apparently contrived or manipulated
  • Bulgarian: внезапен (vnezapen) — sudden, without warning
  • Finnish: yllättävä — sudden, without warning
  • Finnish: äkillinen — sudden, without warning
  • French: soudain — sudden, without warning
  • Greek: ξαφνικός (xafnikós) — sudden, without warning
  • Hungarian: spontán — sudden, without warning
  • Norwegian Bokmål: plutselig — sudden, without warning
  • Norwegian Nynorsk: plutseleg — sudden, without warning
  • Persian: خود جوش، داوطلبانه، ناگهانی — sudden, without warning
Real reading context

spontaneous in complete knowledge articles