operose vs gruelling

operose and gruelling both are adjectives.

Word	Noun	Adjective	Verb	Adverb
operose	No	Yes	No	No
gruelling	No	Yes	No	No

As adjectives, operose and gruelling are synonyms defined as:

operose and gruelling: characterized by effort to the point of exhaustion; especially physical effort

Other synonyms of operose include arduous, backbreaking, grueling, hard, heavy, laborious, punishing, toilsome.

operose (adjective)	gruelling (adjective)
characterized by effort to the point of exhaustion; especially physical effort	characterized by effort to the point of exhaustion; especially physical effort