List of 426 Sets of Synonyms - How they Differ - Total of 2307 Words - 132

SYNONYMS: eccentricity, idiosyncrasy, quirk.
These nouns refer to peculiarity of behavior.

Eccentricity implies divergence from the usual or customary: England is the paradise of individuality, eccentricity, heresy, anomalies, hobbies, and humors.
Idiosyncrasy more often refers to such divergency viewed as being peculiar to the temperament of an individualist and serving as an identifying trait: The use of lowercase letters was an idiosyncrasies of the poet e.e. cummings.
Quirk, a milder term, merely suggests an odd trait or mannerism: Every man had his own quirks and twists.