Transitive verb

to neglect; to be negligent in; to be neglectful of; to fail to do; to leave undone; to avoid (doing); to shirk; to be unmindful of

Dated term; Intransitive verb

to improve (of an illness); to get better

sluggish; languid; listless; heavy (heart, legs, etc.); dull

Slang

bothersome; tiresome; pain-in-the-ass

lazy; idle; indolent; slothful

languid; listless

Intransitive verb

to be lazy; to be idle; to slack

Transitive verb

to neglect (e.g. one's work); to be neglectful of; to skip (e.g. school)

physical weariness; sense of fatigue; washed-out feeling

negligence; neglect; carelessness; procrastination

lazy person; lazy fellow; slothful person

weariness; fatigue; languor; boredom; tedium; ennui

falling behind (with a payment); being in arrears; non-payment; default; delinquency