Antonyms of noun aptness

1 of 2 senses of aptness

Sense 2
aptness, appositeness -- (appropriateness for the occasion; "the phrase had considerable aptness")
       Antonym of inaptness (Sense 1)
      => inaptness, inappositeness -- (inappropriateness; "greater inaptness of expression would be hard to imagine")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun aptness

2 senses of aptness

Sense 1
aptness, propensity -- (a disposition to behave in a certain way; "the aptness of iron to rust"; "the propensity of disease to spread")
       => disposition -- (a natural or acquired habit or characteristic tendency in a person or thing; "a swelling with a disposition to rupture")

Sense 2
aptness, appositeness -- (appropriateness for the occasion; "the phrase had considerable aptness")
       => appropriateness -- (the quality of being specially suitable)