The definition of arduous is a way of describing something that is extremely tiring and difficult.
Done with careful, steady effort; painstaking
Using or based on data that are readily quantified or verified:
Characterized by earnest, steady effort; hardworking; diligent
Demanding great exertion; arduous and exhausting.
Hard to lift or move because of great weight; weighty
Characterized by or requiring toil.
Find another word for operose. In this page you can discover 11 synonyms, antonyms, idiomatic expressions, and related words for operose, like: arduous, diligent, hard, industrious, laborious, backbreaking, grueling, gruelling, heavy, punishing and toilsome.