Not tense; not hard drawn; not firmly extended; as a slack rope; slack rigging; slack shrouds.

Weak; remiss; not holding fast; as a slack hand.

Remiss; backward; not using due diligence; not earnest or eager; as slack in duty or service; slack in business.

Not violent; not rapid; slow; as a slack pace.

Partially; insufficiently; not intensely; as slack dried hops; bread slack baked.

The part of a rope that hangs loose, having no stress upon it.

To become less tense, firm or rigid; to decrease in tension; as, a wet cord slackens in dry weather.

To be remiss or backward; to neglect. Deuteronomy 23:21.

To lose cohesion or the quality of adhesion; as, lime slacks and crumbles into power.

To abate; to become less violent. Whence these raging fires will slacken, if his breath stir not their flames.

To lose rapidity; to become more slow; as, a current of water slackens; the tide slackens.

To languish; to fail; to flag.

To lessen tension; to make less tense or tight; as, to slacken a rope or a bandage.

To relax; to remit; as, to slacken exertion or labor.

To mitigate; to diminish in severity; as, to slacken pain.

To become more slow; to lessen rapidity; as, to slacken one’s pace.

To abate; to lower; as, to slacken the heat of a fire.

To relieve; to unbend; to remit; as, to slacken cares.

To withhold; to use less liberally.

To deprive or cohesion; as, to slack lime.