1. (p. pr. & vb. n.) of Exhaust.
2. (a.) Producing exhaustion; as, exhausting labors.
Thesaurus Entries
arduous, burdensome, crippling, debilitating, devitalizing, difficult, draining, enervating, enfeebling, fatiguesome, fatiguing, grinding, grueling, hard, harsh, heavy, killing, laborious, onerous, oppressive, overburdensome, punishing, sapping, straining, strenuous, stressful, tiresome, tiring, toilsome, trying, tyrannous, weakening, weariful, wearing, wearisome, wearying, weighty
