unbeliever unbelieved • unbelieving · · · Info · Definitions · Synonyms · Characters · · unbeliever · · Text Latin · · Script 10 · · Length 4 · · Syllables Definitions · · · (noun) someone who refuses to believe (as in a divinity). Synonyms: disbeliever, nonbeliever. · · Noun Definition 1 Synonyms · · · disbeliever · · Synonym 1 nonbeliever · · Synonym 2 Characters · · 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 n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075 v latin small letter v U+0076