plural of Slack

plural of slack

(dated) Semi-formal trousers which are less formal than those that are part of a suit but nowadays are considered suitable casualwear in most offices. (Takes a plural verb even when referring to a single pair; may be referred to as a pair of slacks.)

Third-person singular simple present indicative form of slack

A surname.

plural of slackness

Full of laxity; characterised by laxness; relaxed; (by extension) unmotivated, lazy.

(normally said of a rope) Lax; not tense; not firmly extended. / Weak; not holding fast. / Moderately warm. / Moderate in speed. / Lacking diligence or care; not earnest or eager.

Slackly.

To slacken. / (obsolete) To mitigate; to reduce the strength of. / To lose cohesion or solidity by a chemical combination with water; to slake.