torturing vs painful

torturing is a noun but painful is not a noun.

Word	Noun	Adjective	Verb	Adverb
torturing	Yes	Yes	No	No
painful	No	Yes	No	No

torturing (noun)	painful (noun)
the deliberate, systematic, or wanton infliction of physical or mental suffering by one or more persons in an attempt to force another person to yield information or to make a confession or for any other reason

torturing (adjective)	painful (adjective)
extremely painful	causing physical or psychological pain
	exceptionally bad or displeasing
	causing physical discomfort
	causing misery or pain or distress