n. 25B6; adjective EXHAUSTING, tiring, fatiguing, wearying, taxing, draining, debilitating; demanding, exacting, difficult, hard, arduous, strenuous, laborious, back-breaking, harsh, severe, stiff, punishing, crippling; informal killing, murderous, hellish; Brit. informal knackering.
GRUELLING
Meaning of GRUELLING in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012