loosen
verb
[ ˈluːs(ə)n ]
• make (something tied, fastened, or fixed in place) less tight or firm.
• "loosen your collar and tie"
Similar:
make slack,
slacken,
slack,
unstick,
unfasten,
detach,
release,
disconnect,
undo,
unclasp,
unlatch,
unbolt,
unhook,
let out,
• make less strict.
• "his main mistake was to loosen monetary policy"
