Found 1 items, similar to labourious.
English → English (gcide) Definition: labourious labourious \labourious\ adj. 1. characterized by toilsome effort; same as laborious; -- British spelling. [Chiefly Brit.] Syn: arduous, backbreaking, back-breaking, grueling, gruelling, hard, heavy, laborious, punishing, slavish, strenuous, toilsome. [WordNet 1.5]