secondhand

adjectives

derived from what is primary or original; not firsthand
"a secondhand report"; "a secondhand account of a memory of something once read"; "most of our knowledge is secondhand"
is similar to
being of second rank or importance or value; not direct or immediate
"the stone will be hauled to a secondary crusher"; "a secondary source"; "a secondary issue"; "secondary streams"
previously used or owned by another
"bought a secondhand (or used) car"

adverbs

by indirect means
"I heard about it only secondhand or thirdhand"; "he prefers to buy secondhand"