4
wrongness(noun, status, characteristics, states)
3
immodesty(noun, status, characteristics, states)
3
indecorousness(noun, status, characteristics, states)
3
mismatch(noun, form, characteristics, states)
3
undesirableness(noun, traits, situations, phenomena)
2
infelicity(noun, status, characteristics, states)
2
ineptness(noun, form, lack, characteristics, states)
2
inexpediency(noun, traits, situations, phenomena)
2
disqualification(noun, form, characteristics, states)
2
dissonance(noun, form, characteristics, states)
2
inability(noun, lack, characteristics, features, traits)
2
inaptitude(noun, form, characteristics, states)
2
incongruence(noun, form, characteristics, states)
2
inconsistency(noun, form, characteristics, states)
2
inefficiency(noun, form, characteristics, states)
2
inexpedience(noun, traits, situations, phenomena)
2
meaninglessness(noun, traits, situations, phenomena)
2
pointlessness(noun, traits, situations, phenomena)
2
rudeness(noun, status, characteristics, states)
2
unseemliness(noun, status, characteristics, states)
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APASmart Define. (2016). aptness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/aptness/thesaurus/antonyms
ChicagoSmart Define. 2016. "aptness thesaurus" https://smartdefine.org/aptness/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, aptness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/aptness/thesaurus/antonyms>.
MLASmart Define. "aptness thesaurus" 25 February 2016. Web. 22 September 2026. <https://smartdefine.org/aptness/thesaurus/antonyms>