Antonyms of adj unused

4 senses of unused

Sense 1
fresh, unused -- (not yet used or soiled; "a fresh shirt"; "a fresh sheet of paper"; "an unused envelope")

INDIRECT (VIA clean) -> dirty, soiled, unclean -- (soiled or likely to soil with dirt or grime; "dirty unswept sidewalks"; "a child in dirty overalls"; "dirty slums"; "piles of dirty dishes"; "put his dirty feet on the clean sheet"; "wore an unclean shirt"; "mining is a dirty job"; "Cinderella did the dirty work while her sisters preened themselves")

Sense 2
unused -- (not yet put into use; "we bought an unused car for a change")

INDIRECT (VIA new) -> old -- (of long duration; not new; "old tradition"; "old house"; "old wine"; "old country"; "old friendships"; "old money")

Sense 3
idle, unused -- (not in active use; "the machinery sat idle during the strike"; "idle hands")

INDIRECT (VIA inactive) -> active -- (full of activity or engaged in continuous activity; "an active seaport"; "an active bond market"; "an active account")

Sense 4
unused -- (infrequently exposed to; "feet unused to shoes")

INDIRECT (VIA unaccustomed) -> accustomed -- ((often followed by `to') in the habit of or adapted to; "accustomed to doing her own work"; "I've grown accustomed to her face")

Similarity of adj unused

4 senses of unused

Sense 1
fresh, unused -- (not yet used or soiled; "a fresh shirt"; "a fresh sheet of paper"; "an unused envelope")
       => clean (vs. dirty) -- (free from dirt or impurities; or having clean habits; "children with clean shining faces"; "clean white shirts"; "clean dishes"; "a spotlessly clean house"; "cats are clean animals")

Sense 2
unused -- (not yet put into use; "we bought an unused car for a change")
       => new (vs. old) -- (not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered; "a new law"; "new cars"; "a new comet"; "a new friend"; "a new year"; "the New World")

Sense 3
idle, unused -- (not in active use; "the machinery sat idle during the strike"; "idle hands")
       => inactive (vs. active) -- (lacking activity; lying idle or unused; "an inactive mine"; "inactive accounts"; "inactive machinery")

Sense 4
unused -- (infrequently exposed to; "feet unused to shoes")
       => unaccustomed (vs. accustomed) -- (not habituated to; unfamiliar with; "unaccustomed to wearing suits")