loose 22 antonyms and opposites of loose. Adj — Not firmly attached, fixed, or fitting tightly. Synonyms for loose fire unsecured shoot spaced out relaxed tarty whorish unstapled Antonyms for loose constrain bind fasten tie tighten fast firm tight packaged bound leashed tethered tied tied up close-fitting snug compact tense tensed discreet faithful monogamous ← Back to the full definition of loose
