slim vs slenderize

slim is an adjective but slenderize is not an adjective.

Word	Noun	Adjective	Verb	Adverb
slim	No	Yes	Yes	No
slenderize	No	No	Yes	No

As verbs, slim and slenderize are synonyms defined as:

Other synonyms of slim include melt off, reduce, slim down, thin.

slim (adjective)	slenderize (adjective)
small in quantity
being of delicate or slender build

slim (verb)	slenderize (verb)
take off weight	take off weight
	make slender or appear to be slender