Definition of: loose

(ls) adjective loos·er, loos·est
1. Not fastened or confined; not bound or attached; unbound or untied; freed from normal bonds or restraint: loose tresses; to be loose from old habits.
2. Lax in power, character, quality, principle, or conduct; careless; slovenly; slack; relaxed; wanton; dissolute; loose bond; loose conduct.
3. Not precise or exact; vague; indefinite; rambling; unconnected: loose reasoning; a loose style.
4. Not close, compact, dense, tight, or crowded; lacking union of parts; slackly joined or tied; not compact in frame: a loose knot or bond; a loose array; a fabric of loose texture; a man of loose build.
5. Not tight; open: said of a cough when expectoration is without difficulty, or of an abnormal laxity of the bowels.
6. Designating a stable or stall in which the animals are kept untied. See synonyms under IMMORAL, VAGUE, VULGAR, WANTON.
—on the loose At liberty; at large; unconfined.
—adverb In a loose manner: to play fast and loose.
—v. loosed, loos·ing v.t.
1. To set free, as from bondage, penalty, etc.
2. To untie or undo, as a knot or rope.
3. To make less tight; loosen; slacken.
4. Naut. To cast off; release, as a boat from its moorings.
5. To let fly; shoot or discharge, as arrows.
—v.i.
6. To become loose.
7. To loose something. [<ON lauss]
—loose′ly adverb
—loose′ness noun