alacritous

having or showing the ability to respond without delay or hesitation his alacritous response to every request is “Right away, mate!” Synonyms of alacritous quick, alert, expeditious, prompt, ready, willingWords Related to alacritous receptive, responsive; immediate, instant, instantaneous, summary; breakneck, breathless, brisk, fast, fleet, fleet-footed, hit-and-run, lightning, rapid, rapid-fire, rattling, snappy, speedy, swift, whirlwind; eager, keen, sharp; apt, clever, quick, quick-witted, ready-witted, sharp-witted, smartNear Antonyms of alacritous unresponsive; crawling, creeping, dallying, dawdling, dilatory, dillydallying, dragging, laggard, lagging, lazy, lazyish, leisurely, logy (also loggy), poking, poky (or pokey), slothful, slow, slowish, sluggish, tardy, unhurried; dormant, idle, inactive, inert