nonbeliever nonbeing • nonbelieving · · · Info · Definitions · Synonyms · Characters · · nonbeliever · · Text Latin · · Script 11 · · Length Definitions · · · (noun) someone who refuses to believe (as in a divinity). Synonyms: disbeliever, unbeliever. · · Noun Definition 1 Synonyms · · · disbeliever · · Synonym 1 unbeliever · · 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 o latin small letter o U+006F r latin small letter r U+0072 v latin small letter v U+0076