Synonyms and Antonyms of laborious
- the volunteers have been commendably laborious in their cleanup of the beach
animated, astir, buzzing, flourishing, happening, humming, lively, thriving, vibrant
absorbed, concentrating, engrossed, focused (also focussed), immersed, intent, preoccupied
alive, functional, functioning, going, living, operating, operational, operative, running
- the laborious task of cleaning up the oil spill
arduous, Augean, backbreaking, challenging, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), hard, heavy, hellacious, herculean, killer, moiling, murderous, pick-and-shovel, rigorous, rough, rugged, severe, stiff, strenuous, sweaty, tall, testing, toilsome, tough, uphill
abstract, abstruse, complex, complicated, elusive, hairy, insoluble, intricate, involved, knotty, opaque, problematic (also problematical), recondite, serious, spiny, stubborn, thorny, ticklish, tricky
bruising, burdensome, exhausting, labored, onerous, oppressive, stressful, taxing, tight, trying
annoying, bothersome, distressing, irksome, troublesome, vexatious
cheap, easy, effortless, facile, light, mindless, simple, soft, undemanding