rational motive rationally • rationalness · · · Info · Definitions · Characters · · rational motive · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) a motive that can be defended by reasoning or logical argument. Synonyms: rational motive. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 v latin small letter v U+0076