Englishwearying
adjective
it will be a long and wearying discussion:
tiring, exhausting, wearing, trying, fatiguing, enervating, draining, sapping, stressful, weary, crushing;
demanding, exacting, taxing, challenging, burdensome, arduous, gruelling, punishing, grinding, onerous, difficult, hard, tough, heavy, laborious, back-breaking, crippling, strenuous, rigorous, uphill;
tiresome, irksome, wearisome, boring, dull, tedious, monotonous, humdrum, prosaic, unexciting, uninteresting.
▷antonyms refreshing.
weary Oxford Dictionary of English