believability belier • believable · · · Info · Definitions · Synonyms · Characters · · believability · · Text Latin · · Script 13 · · Length Definitions · · · (noun) the quality of being believable or trustworthy. Synonyms: credibility, credibleness. · · Noun Definition 1 Synonyms · · · credibility · · Synonym 1 credibleness · · Synonym 2 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C t latin small letter t U+0074 v latin small letter v U+0076 y latin small letter y U+0079