grueling vs toilsome

grueling and toilsome both are adjectives.

Word	Noun	Adjective	Verb	Adverb
grueling	No	Yes	No	No
toilsome	No	Yes	No	No

As adjectives, grueling and toilsome are synonyms defined as:

grueling and toilsome: characterized by effort to the point of exhaustion; especially physical effort

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

grueling (adjective)	toilsome (adjective)
characterized by effort to the point of exhaustion; especially physical effort	characterized by effort to the point of exhaustion; especially physical effort