Thesaurus
laborious
adjective
Synonyms and Antonyms of LABORIOUS
1
involved in often constant activity <the volunteers have been commendably laborious in their cleanup of the beach>
Synonyms active, assiduous, bustling, diligent, employed, engaged, hopping, industrious, laborious, occupied, sedulous, tied-up, working
Related Words knee-deep, swamped; 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; energetic, vigorous; hardworking; indefatigable, tireless, untiring
2
requiring considerable physical or mental effort <the laborious task of cleaning up the oil spill>
Synonyms arduous, Augean, backbreaking, challenging, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), heavy, hellacious, herculean, killer, laborious, moiling, murderous, pick-and-shovel, rigorous, rough, rugged, severe, stiff, strenuous, sweaty, tall, testing, toilsome, tough, uphill
Related Words 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; grievous, grim, strict, stringent; brutal, cruel, inhuman, painful
Near Antonyms achievable, clear, doable, elementary, manageable, uncomplicated; comforting, gentle, painless, relaxed, smooth, soothing; accessible, friendly, idiotproof, user-friendly
3
requiring much time, effort, or careful attention <that report is the product of months of laborious research>
Synonyms arduous, burdensome, challenging, exacting, grueling (or gruelling), killing, laborious, onerous, persnickety, taxing, toilsome
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