- to free from confinement or restraint; unbind, unfasten, etc.
- to make less taut, less compact, etc.
- to talk freely
- to relax
verbloos·ened, loos·en·ing, loos·ens
Origin of loosenMiddle English lousnen, losnen from losen from los loose ; see loose .
(third-person singular simple present loosens, present participle loosening, simple past and past participle loosened)
From loose +"Ž -en.