- The definition of slack is someone or something weak, slow, relaxed or careless.
- An example of slack is an elastic waistband that has lost its elasticity.
- An example of slack is someone who takes twice as long to do a job as another.
slack definition by Webster's New World
- slow; idle; sluggish
- barely moving: said of a current, as of air or water
- characterized by little work, trade, or business; not busy or active; dull: a slack period
- loose; relaxed; not tight, taut, or firm
- easily changed or influenced; weak; lax
- careless or negligent: a slack workman
Origin: Middle English slakke ; from Old English slæc, akin to Dutch slak ; from Indo-European base an unverified form (s)lēg-, loose, slack from source Classical Latin laxus, lax
- to make slack; slacken
- to slake
- to be or become slack; slacken
- to be idle, careless, or negligent
- a part that is slack or hangs loose
- a lack of tension or tautness; looseness
- a stoppage of movement in a current
- a dull period; lull
Origin: Middle English sleck, akin to Flemish slecke, dross, Dutch slak: for Indo-European base see slay
- a small valley
- a bog; morass
Origin: Middle English slak ; from Old Norse an unverified form slakki ; from Indo-European base an unverified form slēk, wet, sprinkle
slack definition by American Heritage Dictionary
adjective slack·er, slack·est
- 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. A cessation of movement in a current of air or water.b. An area of still water.
- Unused capacity: still some slack in the economy.
- slacks Casual trousers that are not part of a suit.
Origin: Middle English slak, from Old English slǽc; see slēg- in Indo-European roots.
- slackˈly adverb
- slackˈness noun
Origin: Middle English sleck.
noun Chiefly British
- A small dell or hollow.
- A bog; a morass.
Origin: Middle English slak, from Old Norse slakki.
slack - Phrases/Idioms
cut someone some slack