Diminuendo

adv.

1.

(Mus.) In a gradually diminishing manner; with abatement of tone; decrescendo; - expressed on the staff by Dim., or Dimin., or the sign.

Noun	1.	diminuendo - (music) a gradual decrease in loudness Synonyms: decrescendo
Adj.	1.	diminuendo - gradually decreasing in volume Synonyms: decrescendo

decreasing, decrescendo