possess vs possessed

possess is not an adjective while possessed is an adjective.

Word	Noun	Adjective	Verb	Adverb
possess	No	No	Yes	No
possessed	No	Yes	No	No

possess (adjective)	possessed (adjective)
	of, pertaining to, or like a demon or possession by a demon
	influenced or controlled by a powerful force such as a strong emotion

possess (verb)	possessed (verb)
have ownership or possession of
have as an attribute, knowledge, or skill
enter into and control, as of emotions or ideas