Standard Lemma guide

accidental

adj · noun · 12 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.

  • /ˌæk.sɪˈdɛn.tl̩/
  • US: Recorded audio is listed in the source snapshot.
  • Received-Pronunciation: Recorded audio is listed in the source snapshot.
  • rhymes with -ɛntəl
  • CMU ARPABET: AE2 K S AH0 D EH1 N T AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: AE2 K S AH0 D EH1 N AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Pertaining to accident and not essence; thus, inessential; incidental; secondary.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Pertaining to accident and not essence; thus, inessential; incidental; secondary.

Nonessential to something's inherent nature (especially in Aristotelian thought).

Definition source: English Wiktionary via Wiktextract

Topics: human-sciences, philosophy, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Adjusted by one or two semitones, in temporary departure from the key signature.

Definition source: English Wiktionary via Wiktextract

Topics: entertainment, lifestyle, music

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Occurring sometimes, by chance; occasional.

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

Happening by chance, or unexpectedly; taking place not according to the usual course of things; by accident, unintentional.

Definition source: English Wiktionary via Wiktextract

Examples

  • The discovery was purely accidental.
  • He was killed by an accidental gunshot.
  • accidental damage
  • accidental death
  • entirely accidental

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adj

Meaning 6

Being a double point with two distinct tangent planes in 4-dimensional projective space.

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

noun

Meaning 7

A property which is not essential; a nonessential; anything happening accidentally.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

Those fortuitous effects produced by luminous rays falling on certain objects so that some parts stand forth in abnormal brightness and other parts are cast into a deep shadow.

Definition source: English Wiktionary via Wiktextract

Usage: plural, plural-only

Qualifier: painting

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

A sharp, flat, or natural, occurring not at the commencement of a piece of music as the signature, but before a particular note.

Definition source: English Wiktionary via Wiktextract

Topics: entertainment, lifestyle, music

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

Part of a text that has a mainly structural purpose, such as spelling, punctuation, or capitalization.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

adjective satellite

Meaning 11

happening by chance or unexpectedly or unintentionally

Definition source: Princeton WordNet 3.0

Examples

  • with an inadvertent gesture she swept the vase off the table
  • accidental poisoning
  • an accidental shooting

Meaning relationships

Synonyms: inadvertent

Antonyms: none provided

12

noun

Meaning 12

a musical notation that makes a note sharp or flat or natural although that is not part of the key signature

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: musical notation

History

Etymology

From Middle English accidental, from Anglo-Norman accidentel, Middle French accidentel, accidental, and their source, Late Latin accidēntālis; corresponding to accident + -al.

Across languages

Translations

80 source translations are retained for this English entry.

  • Arabic: عَرْضِيّ (ʕarḍiyy) — happening by chance
  • Armenian: պատահական (patahakan) — happening by chance
  • Bashkir: осраҡлы (osraqlı) — happening by chance
  • Belarusian: выпадко́вы (vypadkóvy) — happening by chance
  • Belarusian: неспадзява́ны (njespadzjavány) — happening by chance
  • Bulgarian: случа́ен (slučáen) — happening by chance
  • Bulgarian: неоча́кван (neočákvan) — happening by chance
  • Catalan: accidental — happening by chance
  • Chinese Mandarin: 偶然 (ǒurán) — happening by chance
  • Czech: nahodilý — happening by chance
  • Czech: náhodný — happening by chance
  • Danish: tilfældig — happening by chance
  • Dutch: toevallig — happening by chance
  • Esperanto: neatendita — happening by chance
  • Esperanto: hazarda — happening by chance
  • Esperanto: akcidenta — happening by chance
  • Finnish: sattumanvarainen — happening by chance
  • Finnish: sattumalta — happening by chance
  • French: accidentel — happening by chance
  • Georgian: შემთხვევითი (šemtxveviti) — happening by chance
  • German: versehentlich — happening by chance
  • German: zufällig — happening by chance
  • Greek: τυχαίος (tychaíos) — happening by chance
  • Ancient Greek: τυχαῖος (tukhaîos) — happening by chance
  • Hebrew: מִקְרִי (mikrí) — happening by chance
  • Hindi: आकस्मिक (ākasmik) — happening by chance
  • Hindi: संयोगी (sãyogī) — happening by chance
  • Hindi: आगंतुक (āgantuk) — happening by chance
  • Hindi: इत्तफ़ाक़िया (ittafāqiyā) — happening by chance
  • Hungarian: véletlen — happening by chance
  • Irish: aimseach — happening by chance
  • Irish: toirmeascach — happening by chance
  • Italian: accidentale — happening by chance
  • Japanese: 偶然の (gūzen no) — happening by chance
  • Korean: 우연하다 (uyeonhada) — happening by chance
  • Korean: 돌발적 (dolbaljeok) — happening by chance
  • Latin: fortuītus — happening by chance
  • Macedonian: случаен (slučaen) — happening by chance
  • Māori: kōpeka — happening by chance
  • Norwegian Bokmål: tilfeldig — happening by chance
  • Persian: تصادفی (tasâdofi) — happening by chance
  • Polish: przypadkowy — happening by chance
  • Portuguese: acidental — happening by chance
  • Romanian: accidental — happening by chance
  • Romanian: întâmplător — happening by chance
  • Russian: случа́йный (slučájnyj) — happening by chance
  • Russian: неожи́данный (neožídannyj) — happening by chance
  • Serbo-Croatian: слу̏ча̄јан — happening by chance
  • Serbo-Croatian: нена́мјеран — happening by chance
  • Serbo-Croatian: slȕčājan — happening by chance
  • Serbo-Croatian: nenámjeran — happening by chance
  • Slovak: náhodný — happening by chance
  • Slovene: naključen — happening by chance
  • Spanish: accidental — happening by chance
  • Spanish: casual — happening by chance
  • Spanish: imprevisto — happening by chance
  • Spanish: fortuito — happening by chance
  • Swedish: tillfällig — happening by chance
  • Tajik: тасодуфӣ (tasodufi) — happening by chance
  • Tatar: очраклы (oçraqlı) — happening by chance
  • Ukrainian: випадко́вий (vypadkóvyj) — happening by chance
  • Ukrainian: несподі́ваний (nespodívanyj) — happening by chance
  • Urdu: حادثاتی (hādsātī) — happening by chance
  • Urdu: ناگہاں (nāgahā̃) — happening by chance
  • Uzbek: tasodifiy — happening by chance
  • Bulgarian: несъществено качество (nesǎštestveno kačestvo) — a property which is not essential
  • German: Zufall — a property which is not essential
  • German: Versehen — a property which is not essential
  • Polish: wypadkowa — a property which is not essential
  • Portuguese: acidente — (in plural, painting)
  • Afrikaans: byteken — (music)
  • Catalan: accident — (music)
  • Finnish: etumerkki — (music)
  • French: altération — (music)
  • Greek: αλλοίωση (alloíosi) — (music)
  • Hungarian: módosítójel — (music)
  • Japanese: 臨時記号 (rinji kigō) — (music)
  • Norwegian Bokmål: løst fortegn — (music)
  • Norwegian Nynorsk: laust forteikn — (music)
  • Portuguese: acidente — (music)
Real reading context

accidental in complete knowledge articles