not taut or held tightly in position; loose.
"a slack rope"
|synonyms:||loose, limp, not taut, not tight, hanging, flapping;|
having or showing laziness or negligence.
"slack accounting procedures"
|synonyms:||lax, negligent, neglectful, remiss, careless, slapdash, slipshod, lackadaisical, lazy, inefficient, incompetent, inattentive, offhand, casual, disorderly, disorganized;|
the part of a rope or line which is not held taut; the loose or unused part.
"I picked up the rod and wound in the slack"
|synonyms:||looseness, play, give
"the rope had just enough slack in it to allow her to reach him"
"he put on a grey shirt and loose cotton slacks"
loosen (something, especially a rope).
"slacking the outhaul allows you to adjust the sail"
decrease or reduce in intensity, quantity, or speed.
"the flow of blood slacked off"
|synonyms:||reduce, lessen, slacken, slow, ease up/off|