50 entries under irregularity topic. ×

25
peculiarity(noun, characteristic, weakness, twist, fault)
23
idiosyncrasy(noun, characteristic, weakness, twist, fault)
20
oddity(noun, characteristic, weakness, twist, fault)
19
irregularity(noun, characteristic, twist, usual, chance)
17
singularity(noun, characteristic, weakness, twist, fault)
16
quirk(noun, characteristic, passion, weakness, twist)
14
aberration(noun, state, flaw, deviation)
13
abnormality(noun, characteristic, trait, usual, different)
13
anomaly(noun, usual, flaw, indiscretion, deviation)
11
strangeness(noun, characteristic, belief, disagreement, opposition)
10
kink(noun, characteristic, passion, weakness, twist)
10
unconventionality(noun, characteristic, belief, disagreement, opposition)
9
weirdness(noun, flaw, unusualness, ridiculousness)
8
deviation(noun, usual, flaw, indiscretion, originality)
8
oddness(noun, characteristic, deviation, peculiarity)
7
bizarreness(noun, characteristic, trait, flaw, deviation)
7
incongruity(noun, characteristic, absurdity, quirk)
7
outlandishness(noun, characteristic, absurdity, quirk)
6
capriciousness(noun, originality, peculiarity, nonconformity)
6
queerness(noun, characteristic, individuality, quirk)
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APASmart Define. (2016). eccentricity thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/eccentricity/thesaurus/synonyms
ChicagoSmart Define. 2016. "eccentricity thesaurus" https://smartdefine.org/eccentricity/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, eccentricity thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/eccentricity/thesaurus/synonyms>.
MLASmart Define. "eccentricity thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/eccentricity/thesaurus/synonyms>