empirical vs experimental

empirical and experimental both are adjectives.

Word	Noun	Adjective	Verb	Adverb
empirical	No	Yes	No	No
experimental	No	Yes	No	No

empirical (adjective)	experimental (adjective)
derived from experiment and observation rather than theory	relating to or based on experiment
relying on medical quackery	relying on observation or experiment
	of the nature of or undergoing an experiment