Antonyms of noun fluency

1 of 3 senses of fluency

Sense 2
fluency -- (skillfulness in speaking or writing)
       Antonym of disfluency (Sense 1)
      => disfluency -- (lack of skillfulness in speaking or writing)

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

3 senses of fluency

Sense 1
eloquence, fluency, smoothness -- (powerful and effective language; "his eloquence attracted a large congregation"; "fluency in spoken and written English is essential"; "his oily smoothness concealed his guilt from the police")
       => expressive style, style -- (a way of expressing something (in language or art or music etc.) that is characteristic of a particular person or group of people or period; "all the reporters were expected to adopt the style of the newspaper")

Sense 2
fluency -- (skillfulness in speaking or writing)
       => skillfulness -- (the state of being cognitively skillful)

Sense 3
fluency, volubility, articulateness -- (the quality of being facile in speech and writing)
       => communicativeness -- (the trait of being communicative)