taken up vs preoccupied

taken up and preoccupied both are adjectives.

Word	Noun	Adjective	Verb	Adverb
taken up	No	Yes	No	No
preoccupied	No	Yes	No	No

As adjectives, taken up and preoccupied are synonyms defined as:

taken up and preoccupied: having or showing excessive or compulsive concern with something

Other synonyms of taken up include haunted, obsessed.

taken up (adjective)	preoccupied (adjective)
having or showing excessive or compulsive concern with something	having or showing excessive or compulsive concern with something
	deeply absorbed in thought