unskilled vs unskillful

unskilled and unskillful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unskilled	No	Yes	No	No
unskillful	No	Yes	No	No

unskilled (adjective)	unskillful (adjective)
not having or showing or requiring special skill or proficiency	poorly done
not doing a good job
lacking professional skill or expertise