gruelling vs operose

gruelling and operose both are adjectives.

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

As adjectives, gruelling and operose are synonyms defined as:

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

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

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