[n] (music) a gradual decrease in loudness [adj] gradually decreasing in volume [v] grow quieter, of sound; "The music decrescendoes here"
decreasing, diminuendo, diminuendo
crescendo
a cappella, abbandono, accrescendo, adagietto, adagio, affettuoso, agilmente, agitato, allegretto, allegro, amabile, amoroso, andante, andantino, appassionatamente, appassionato, barely audible, brillante, capriccioso, catabasis, collapse, con affetto, co