operose
81assiduous — Synonyms and related words: advertent, agog, alert, all ears, all eyes, ardent, attentive, aware, careful, concentrated, conscious, constant, continuing, diligent, dogged, earnest, elaborate, enduring, energetic, faithful, fervent, finical,… …
82backbreaking — Synonyms and related words: Herculean, annoying, arduous, besetting, bothersome, burdensome, crushing, effortful, forced, grueling, hard earned, hard fought, heavy, hefty, irksome, killing, labored, laborious, onerous, operose, oppressive,… …
83brutal — Synonyms and related words: Adamic, Circean, Draconian, Gothic, Herculean, Neanderthal, Tartarean, abominable, abstruse, animal, animalian, animalic, animalistic, anthropophagous, arduous, arrant, atrocious, awful, baneful, barbarian, barbaric,… …
84burdensome — Synonyms and related words: Herculean, annoying, arduous, backbreaking, besetting, bothersome, crushing, cumbersome, cumbrous, demanding, distressing, effortful, encumbering, exacting, exhausting, exigent, forced, grievous, grinding, grueling,… …
85complex — Synonyms and related words: Byzantine, Chinese puzzle, Diana complex, Electra complex, Gordian knot, Herculean, Oedipus complex, Rube Goldberg contraption, abstruse, acculturation, amalgamated, ambiguous, ambivalent, amphibious, arduous, baffling …
86critical — Synonyms and related words: Herculean, abstruse, accurate, acute, alarming, allegorizing, annotative, appreciative, arduous, attentive, bad, basic, belittling, brutal, captious, carping, caviling, censorious, charged, choicy, choosy, clamorous,… …
87crushing — Synonyms and related words: Herculean, annoying, arduous, awkward, backbreaking, besetting, bothersome, burdensome, chastening, disconcerting, disturbing, effortful, embarrassing, forced, grueling, hard earned, hard fought, heavy, hefty, humbling …
88delicate — Synonyms and related words: Herculean, Victorian, abstruse, accommodating, accommodative, accurate, adept, aerial, agreeable, airy, allergic, ambrosial, anaphylactic, appreciative, arduous, attentive, attenuate, attenuated, balmy, becoming,… …
89demanding — Synonyms and related words: Herculean, Spartan, Spartanic, abstruse, accurate, arduous, astringent, attentive, austere, authoritarian, brutal, burdensome, cajoling, clamant, clamorous, close, coaxing, complex, conscientious, correct, critical,… …
90difficult — Synonyms and related words: Herculean, abstruse, adverse, antagonistic, arduous, awkward, baffling, beyond one, bloody minded, brutal, burdensome, cantankerous, complex, complicated, conflicting, contrary, counter, counteractive, crabbed, cramp,… …
