put to use, utilized, applied, adopted, adapted, accepted, put in service, practiced, turned to account.
Antonyms discarded*, rejected, unused.
practiced, customary, suited; see habitual 1.
castoff, depreciated, repossessed; see old 2, worn 2.
"used." YourDictionary, n.d. Web. 20 May 2018. <http://thesaurus.yourdictionary.com/Used>.
used. (n.d.). Retrieved May 20th, 2018, from http://thesaurus.yourdictionary.com/Used
In the habit: