color blindness color-blind • color-blind person · · · Info · Definitions · Synonyms · Characters · · color blindness · · Text Common · · Latin · · Scripts 15 · · Length 4 · · Syllables Definitions · · · (noun) genetic inability to distinguish differences in hue. Synonyms: color blindness, colour blindness, color vision deficiency, colour vision deficiency. · · Noun Definition 1 Synonyms · · · colour blindness · · Synonym 1 color vision deficiency · · Synonym 2 colour vision deficiency · · Synonym 3 Characters · · space U+0020 b latin small letter b U+0062 c latin small letter c U+0063 d latin small letter d U+0064 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 s latin small letter s U+0073