Pronunciation: (slak),[key] —adj. 1. not tight, taut, firm, or tense; loose: a slack rope. 2. negligent; careless; remiss: slack proofreading. 3. slow, sluggish, or indolent: He is slack in answering letters. 4. not active or busy; dull; not brisk: the slack season in an industry. 5. moving very slowly, as the tide, wind, or water.
6. weak; lax.
7. Naut.easy (def. 15a).
—adv. in a slack manner.
—n. 1. a slack condition or part.
2. the part of a rope, sail, or the like, that hangs loose, without strain upon it.
3. a decrease in activity, as in business or work: a sudden slack in output. 4. a period of decreased activity.
5. Geog.a cessation in a strong flow, as of a current at its turn.
6. a depression between hills, in a hillside, or in the land surface.
7. Pros.(in sprung rhythm) the unaccented syllable or syllables.
8. Brit. Dial.a morass; marshy ground; a hollow or dell with soft, wet ground at the bottom.
9. take up the slack, a. to pull in or make taut a loose section of a rope, line, wire, etc.: Take up the slack before releasing the kite. b. to provide or compensate for something that is missing or incomplete: New sources of oil will take up the slack resulting from the embargo.
—v.t. 1. to be remiss in respect to (some matter, duty, right, etc.); shirk; leave undone: He slacked the most important part. 2. to make or allow to become less active, vigorous, intense, etc.; relax (efforts, labor, speed, etc.); lessen; moderate (often fol. by up).
3. to make loose, or less tense or taut, as a rope; loosen (often fol. by off or out).
4. to slake (lime).
—v.i. 1. to be remiss; shirk one's duty or part.
2. to become less active, vigorous, rapid, etc. (often fol. by up): Business is slacking up. 3. to become less tense or taut, as a rope; to ease off.
4. to become slaked, as lime.
Pronunciation: (slak),[key] —n. the fine screenings of coal.