seatrain, antisera, ratanies, santeria, banister, barniest, tacrines, canister, ceratins, creatins, cisterna, scantier, randiest, detrains, strained, arenites, arsenite, trainees, resinate, stearine, fainters, granites, angriest, astringe, ingrates, rangiest, ganister, gantries, therians, hairnets, inearths, rainiest, inertias, keratins, trenails, retinals, entrails, latrines, ratlines, minarets, and 29 more.
Your query has returned 262 words, which include anagrams of retains as well as other shorter words that can be made using the letters included in retains.
The words in this list can be used in games such as Scrabble, Words with Friends, Wordscapes and other similar games.