sluggish

Synonyms

crawling, creeping, dallying, dawdling, dilatory, dillydallying, dragging, laggard, lagging, languid, leisurely, poking, poky (or pokey), slow, tardy, unhurried;

Antonyms

barreling, bolting, breakneck, breathless, brisk, careering, dizzy, fast, fleet, flying, hasty, hurrying, lightning, meteoric, quick, racing, rapid, rocketing, running, rushing, speeding, speedy, swift, warp-speed, whirling, whirlwind, whisking, zipping;

Near Antonyms

expeditious, prompt, ready;

accelerated, hastened, quickened;

hurried, rushed;

Related Words

deliberate, measured;

inactive, inert, lethargic;

lingering, loitering, tarrying;

ambling, heavy-footed, inching, plodding, shuffling, slow-footed;

strolling;

decelerating, slowing;

procrastinating, stalling;