unused

adjective

1. not used; not put to use: an unused room.
2. never having been used: an unused postage stamp.
3. not accustomed: unused to cold winters.

adjective

1. (ʌnˈjuːzd) not being or never having been made use of
2. (ʌnˈjuːst) (postpositive foll by to) not accustomed or used (to something)

adj.c.1300, “unaccustomed,” from un- (1) “not” + past participle of use (v.). Meaning “not employed” is recorded from late 14c.