Likeliest Synonyms and Antonyms

Believable
(Adjective)
Synonyms:
  1. truest
Has a good chance of being the case or of coming about
(Adjective)
Synonyms:
  1. aptest
  2. comeliest
Antonyms:
  1. unlikeliest
Probable, apt, hopeful
(Adjective)
Synonyms:
  1. aptest
Antonyms:
  1. unlikeliest