unreason unreared • unreasonability · · · Info · Definitions · Synonyms · Characters · · unreason · · Text Latin · · Script 8 · · Length Definitions · · · (noun) the state of being irrational; lacking powers of understanding. Synonyms: irrationality. · · Noun Definition 1 Synonyms · · · irrationality · · Synonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075