skillful vs proficient

skillful and proficient both are adjectives.

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

As adjectives, skillful and proficient are synonyms defined as:

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

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

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