n. 25B6; adjective
the rope went slack : LOOSE, limp, hanging, flexible.
slack skin : FLACCID, flabby, loose, sagging, saggy.
business is slack : SLUGGISH, slow, quiet, slow-moving, flat, depressed, stagnant.
slack accounting procedures : LAX, negligent, remiss, careless, slapdash, sloppy, slipshod, lackadaisical, inefficient, casual; informal slap-happy.
tight, taut.
25B6; noun
the rope had some slack in it : LOOSENESS, play, give.
foreign demand will help pick up the slack : SURPLUS, excess, residue, spare capacity.
a little slack in the daily routine : LULL, pause, respite, break, hiatus, breathing space; informal let-up, breather.
25B6; verb
the horse slacked his pace : REDUCE, lessen, slacken, slow.
(Brit. informal) no slacking! : IDLE, shirk, be lazy, be indolent, waste time, lounge about; Brit. informal skive; N. Amer. informal goof off.
25A0; slack off
the rain has slacked off : DECREASE, subside, let up, ease off, abate, diminish, die down, fall off.
slack off a bit! : RELAX, take things easy, let up, ease up/off, loosen up, slow down; N. Amer. informal hang loose, chill out.
25A0; slack up the horse slacked up : SLOW (DOWN), decelerate, reduce speed.