Synset

having or showing excessive or compulsive concern with something
<adj.all>   (p)   freq. cnt.: 4 freq. cnt.: 1 freq. cnt.: 1 freq. cnt.: 1 freq. cnt.: 1

haunted

obsessed

preoccupied

taken up

sample sentences

"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"
"he was taken up in worry for the old woman"