List of operose synonyms and operose related words.
Herculean, abstruse, arduous, assiduous, backbreaking, brutal, burdensome, complex, critical, crushing, delicate, demanding, difficile, difficult, diligent, effortful, elaborate, exacting, forced, formidable, grueling, hairy, hard, hard-earned, hard-fought, heavy, hefty, industrious, intricate, jawbreaking, killing, knotted, knotty, labored, laborious, mean, no picnic, not easy, onerous, oppressive, painful, painstaking, punishing, rigorous, rough, rugged, sedulous, set with thorns, severe, spiny, steep, strained, strenuous, thorny, thorough, thoroughgoing, ticklish, toilsome, tough, tricky, troublesome, uphill, wearisome, wicked