idiosyncrasy

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idiosyncrasy

  • /ˌɪdɪəʊˈsɪŋkɹəsi/ UK
  • /ˌɪdɪəˈsɪŋkɹəsi/ UK
  • /ˌɪdiəˈsɪŋkɹəsi/ US
  • /ˌɪdioʊˈsɪŋkɹəsi/ US
  • /ˌɪdiəˈsɪŋkɹəsi/ Australia
  • /ˌədiəˈsəŋkɹəsi/ New Zealand

Where it comes from

First attested in 1604, in modern sense since 1665, from Ancient Greek ἰδιοσυγκρασία (idiosunkrasía, “one’s own temperament”), from ἴδιος (ídios, “one’s own”) + σύν (sún, “together”) + κρᾶσις (krâsis, “temperament”). By surface analysis, idio- + syn- + -crasy.

noun idiosyncrasies

  1. A behavior or way of thinking that is characteristic of a person or a group. This mode of death had been an idiosyncrasy with his family, for generations past; not often occurring, indeed, but, when it does occur, usually attacking individuals about the Judge’s time of life, and generally in the tension of some mental crisis, or, perhaps, in an access of wrath.

    Similar: eccentricity, foible, habit, idiocrasy, mannerism, oddity, quirk, vagary

  2. A peculiar individual reaction to a generally innocuous substance or factor; a risk factor. […]I have no antipathy, or rather Idio-ſyncraſie, in dyet, humour, ayre, any thing; […].
  3. A peculiarity that serves to distinguish or identify. He mastered the idiosyncrasies of English spelling and speech.

Translations

Every language

noun way of behaving or thinking

Españolidiosincrasia, chiripiorca
日本語個性 kosei, 特異体質 tokuitaishitsu
Portuguêsidiossincrasia
Françaisidiosyncrasie
DeutschEigenheit, Eigenart, Eigensinn
Italianoidiosincrasia, mania, fissazione
Ελληνικάιδιοσυγκρασία idiosygkrasía, νοοτροπία nootropía
Românăparticularitate, idiosincrazie
Русскийидиосинкрази́я idiosinkrazíja
Tiếng Việtcá tính, cá biệt

noun language or behaviour particular to an individual or a group

Españolidiosincrasia
Portuguêsidiossincrasia
Françaisidiosyncrasie
DeutschEigenheit, Eigenart, Idiosynkrasie
Italianoidiosincrasia
Românătrăsătură
Русскийотличи́тельная осо́бенность otličítelʹnaja osóbennostʹ, отличи́тельная черта́ otličítelʹnaja čertá
Tiếng Việtcá tính, cá biệt, đặc tính, đặc điểm

noun (medicine) individual reaction to a generally innocuous substance

Portuguêsidiossincrasia
Françaisidiosyncrasie
DeutschIdiosynkrasie
Italianoidiosincrasia, insofferenza, intolleranza
Ελληνικάευαισθησία evaisthisía
Românăidiosincrasie
Русскийидиосинкрази́я idiosinkrazíja

noun peculiarity that serves to distinguish or identify

日本語特性 tokusei
中文特性 tèxìng
Portuguêsidiossincrasia
Françaisidiosyncrasie
DeutschEigenheit, Eigenart, besonderes Merkmal
Italianoidiosincrasia, avversione
Ελληνικάιδιοσυγκρασία idiosygkrasía
Românăcaracteristică, particularitate
Русскийотличи́тельная осо́бенность otličítelʹnaja osóbennostʹ, отличи́тельная черта́ otličítelʹnaja čertá

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MLA

"idiosyncrasy." Wiktionary, via Micwyn, micwyn.com/word/idiosyncrasy. Accessed 6 Nov. 2026.

APA

idiosyncrasy. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/idiosyncrasy

Chicago

"idiosyncrasy." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/idiosyncrasy.

BibTeX
@misc{idiosyncrasy_2026,
  title = {idiosyncrasy},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/idiosyncrasy},
  urldate = {2026-11-06}
}