sor·di·no 
(sôr-dēnō)
(sôr-dēnō)n. pl. sor·di·ni (-nē)
Music
Music
A mute for an instrument.
[Italian, diminutive of sordo, deaf, mute, from Latin surdus.]
- unprofitably
- unpromising
- unpromisingly
- unpronounceable
- unpropitious
- unpropitiously
- unprotected
- unprovided
- unprovidedly
- unprovoked
- unpublishable
- unputdownable
- unqualified
- unqualifiedly
- unquenchable
- unquenchably
- unquestionability
- unquestionable
- unquestionableness
- unquestionably
- unquestioned
- unquestioning
- unquestioningly
- unquiet
- unquietly