Antonyms of adj believable

1 sense of believable

Sense 1
credible (vs. incredible), believable -- (capable of being believed; "completely credible testimony"; "credible information")


Similarity of adj believable

1 sense of believable

Sense 1
credible (vs. incredible), believable -- (capable of being believed; "completely credible testimony"; "credible information")
       => likely -- (within the realm of credibility; "not a very likely excuse")
       => presumptive -- (affording reasonable grounds for belief or acceptance; "presumptive evidence"; "a strong presumptive case is made out")
          Also See-> plausible#1; thinkable#1