2
originality(noun, nature, feature, characteristic, quality)
2
outlandishness(noun, characteristic, quirk, irregularity, unconformity)
2
personality(noun, nature, feature, state, quality)
2
pose(trait, gesture)
2
queerness(characteristic, trait, quirk, irregularity, peculiarity)
2
savor(noun, characteristic, quality, character, trick)
2
seal(noun, feature, characteristic, impression, indication)
2
shape(noun, state, condition, circumstances)
2
sign(characteristic, quality, property)
2
slant(noun, characteristic, quality, feeling, character)
2
strain(noun, approach, way, fashion, method)
2
streak(noun, nature, feature, quality, style)
2
stripe(noun, nature, feature, quality, style)
2
symptom(noun, nature, feature, characteristic, quality)
2
token(noun, feature, characteristic, indication, indicator)
2
trademark(noun, nature, feature, quality, style)
2
unnaturalness(characteristic, deviation, quirk, irregularity, peculiarity)
2
vein(noun, approach, way, fashion, method)
2
whimsicality(originality, eccentricity, peculiarity, nonconformity, unusualness)
2
whimsy(chance, coincidence, fluke)
10 years ago|14k views|share |citing 
APASmart Define. (2016). idiosyncrasy thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/idiosyncrasy/thesaurus/synonyms
ChicagoSmart Define. 2016. "idiosyncrasy thesaurus" https://smartdefine.org/idiosyncrasy/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, idiosyncrasy thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/idiosyncrasy/thesaurus/synonyms>.
MLASmart Define. "idiosyncrasy thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/idiosyncrasy/thesaurus/synonyms>