n. 25B6; adjective DEMANDING, exacting, challenging, burdensome, arduous, onerous, difficult, hard, tough, laborious, back-breaking, strenuous, rigorous, punishing; tiring, exhausting, enervating, wearing, stressful; informal murderous.
easy.
TAXING
Meaning of TAXING in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012