(n.) Small coal; also, coal dust; culm.
(n.) A valley, or small, shallow dell.
(superl.) Lax; not tense; not hard drawn; not firmly extended;
as, a slack rope.
(superl.) Weak; not holding fast; as, a slack hand.
(superl.) Remiss; backward; not using due diligence or care; not
earnest or eager; as, slack in duty or service.
(superl.) Not violent, rapid, or pressing; slow; moderate; easy;
as, business is slack.
(adv.) Slackly; as, slack dried hops.
(n.) The part of anything that hangs loose, having no strain upon
it; as, the slack of a rope or of a sail.
(a.) Alt. of Slacken
(v. t.) Alt. of Slacken