什么是 slack?Moving slowly; sluggish: a slack pace. Lacking in activity; not busy: a slack season for the travel business. Not tense or taut; loose: a slack rope; slack muscles. See Synonyms at loose.Lacking firmness; flaccid: a slack grip. Lacking in diligence or due care or concern; negligent: a slack worker. See Synonyms at negligent.Flowing or blowing with little speed: a slack current; slack winds. Linguistics Pronounced with the muscles of the tongue and jaw relatively relaxed; lax.To make slower or looser; slacken.To be careless or remiss in doing: slack one's duty. To slake (lime).To be or become slack.To evade work; shirk.A loose part, as of a rope or sail.A lack of tension; looseness.A period of little activity; a lull.A cessation of movement in a current of air or water.An area of still water.Unused capacity: still some slack in the economy. Casual trousers that are not part of a suit.In a slack manner: a banner hanging slack. slack off To decrease in activity or intensity.cut Slang To make an allowance for (someone), as in allowing more time to finish something.A mixture of coal fragments, coal dust, and dirt that remains after screening coal.Chiefly British A small dell or hollow.Chiefly British A bog; a morass.