Other Words for Laborious

Laborious Adjective Synonyms
industrious, hard-working, dogged, determined, unwavering, obstinate, stubborn, unflagging, obdurate
He made a laborious effort to get ahead.

laboured, strained, forced, ponderous, overworked
The book contains some of the most laborious prose ever written.

Laborious Verb Synonyms
painstaking, detailed, careful, thorough, diligent, scrupulous, exhaustive, steady, steadfast, relentless, unrelenting, dogged, assiduous, sedulous, persevering, persistent, untiring, tireless, indefatigable, unremitting
After laborious research the virus was finally identified.

arduous, burdensome, onerous, strenuous, grueling, back-breaking, Herculean, exhausting, taxing, tiring, fatiguing, wearying, wearisome, toilsome, difficult, tough, hard, uphill, stiff
Few realize how laborious farm work can be.

More Words for Laborious

Hard / Tough / Determined / Stiff / Thorough