One who procrastinates or is lazy. / A person lacking a sense of direction in life; an underachiever. / A member of a certain 1990s subculture associated with Generation X.

(intransitive) To gradually decrease in intensity or tautness; to become slack. / (transitive) To make slack, less taut, or less intense.

(informal, derogatory) Half-hearted activism, usually in the form of posting badges, images, apps, or text on social media without taking further action.

(informal, skiing, snowboarding) An off-piste terrain

simple past tense and past participle of slackline

plural of slackening

Alternative form of slack-handedness

Alternative form of slack-handed

Characteristic of a slacker

(archaic) second-person singular simple present form of slacken