preoccupied vs obsessed

preoccupied and obsessed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
preoccupied	No	Yes	No	No
obsessed	No	Yes	No	No

As adjectives, preoccupied and obsessed are synonyms defined as:

preoccupied and obsessed: having or showing excessive or compulsive concern with something

Other synonyms of preoccupied include haunted, taken up.

preoccupied (adjective)	obsessed (adjective)
having or showing excessive or compulsive concern with something	having or showing excessive or compulsive concern with something
deeply absorbed in thought	influenced or controlled by a powerful force such as a strong emotion