proficient vs skillful

proficient and skillful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
proficient	No	Yes	No	No
skillful	No	Yes	No	No

As adjectives, proficient and skillful are synonyms defined as:

proficient and skillful: having or showing knowledge and skill and aptitude

Other synonyms of proficient include adept, expert, good, practiced, skilful.

proficient (adjective)	skillful (adjective)
of or relating to technique or proficiency in a practical skill	done with delicacy and skill
having or showing knowledge and skill and aptitude	having or showing knowledge and skill and aptitude