Antonyms of noun incredibility

1 sense of incredibility

Sense 1
incredibility, incredibleness -- (the quality of being incredible)
       Antonym of credibility (Sense 1)
      => credibility, credibleness, believability -- (the quality of being believable or trustworthy)

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

1 sense of incredibility

Sense 1
incredibility, incredibleness -- (the quality of being incredible)
       => quality -- (an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare)