substantive dye substantive • substantively · · · Info · Definitions · Synonyms · Characters · · substantive dye · · Text Common · · Latin · · Scripts 15 · · Length 4 · · Syllables Definitions · · · (noun) dye with a high affinity for cellulose fibers (cotton or rayon etc.). Synonyms: direct dye, substantive dye. · · Noun Definition 1 Synonyms · · · direct dye · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 v latin small letter v U+0076 y latin small letter y U+0079