adjective
1.
not new; owned by sb else before :
second-hand cars
a second-hand bookshop (= for selling second-hand books)
2.
(often disapproving ) ( of news, information, etc. ) learned from other people, not from your own experience :
second-hand opinions
► ˌsecond-ˈhand adverb :
I bought the camera second-hand.
I only heard about it second-hand.
—compare first-hand