Word Study
unloosen
CIDE DICTIONARY
unloosen, v. t. [1st pref. un- (intensive) + loosen.].
To loosen; to unloose. [1913 Webster]
THESAURUS
unloosen
cast off, detach, disengage, doff, free, liberate, loose, loosen, release, remove, take off, unbar, unbind, unbolt, unbridle, unbuckle, unbutton, uncage, unchain, unclasp, undo, unfasten, unfetter, ungag, unglue, unhandcuff, unhobble, unlace, unlash, unlatch, unleash, unlock, unloose, unmanacle, unmuzzle, unpen, unpinion, unshackle, unstick, unstrap, untether, untie, untruss, unyoke, weigh anchorFor further exploring for "unloosen" in Webster Dictionary Online