diminuendo diminishment • diminutal · · · Info · Definitions · Synonyms · Characters · · diminuendo · · Text Latin · · Script 10 · · Length Definitions · · · (noun) (music) a gradual decrease in loudness. Synonyms: decrescendo. · · Noun Definition 1 (adj) gradually decreasing in volume. Synonyms: decrescendo. · · Adjective Definition 1 Synonyms · · · decrescendo · · Synonym 1 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F u latin small letter u U+0075