achromaticity achromatically • achromatin · · · Info · Definitions · Synonyms · Characters · · achromaticity · · Text Latin · · Script 13 · · Length Definitions · · · (noun) the visual property of being without chromatic color. Synonyms: colorlessness, colourlessness, achromatism. · · Noun Definition 1 Synonyms · · · colorlessness · · Synonym 1 colourlessness · · Synonym 2 achromatism · · Synonym 3 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079