View Arduous Definition Synonym Photos. Find another word for arduous. The definition of trying is defined as an irritating person or thing.
From latin arduus (lofty, high, steep, hard to reach, difficult, laborious), akin to irish ard (high).
Find another word for arduous. Find more ways to say arduous, along with related words, antonyms and example phrases at thesaurus.com, the world's most trusted free thesaurus. (ˈɑːrdʒuːəs) characterized by effort to the point of exhaustion; (adjective) in the sense of difficult.