1. [ adjective ] having or showing excessive or compulsive concern with something
Synonyms: preoccupied taken_up haunted

"became more and more haunted by the stupid riddle" "was absolutely obsessed with the girl" "got no help from his wife who was preoccupied with the children"

Related terms: concerned
2. [ adjective ] influenced or controlled by a powerful force such as a strong emotion
Synonyms: possessed

"by love possessed"

Related terms: controlled
Similar spelling:   obsess