worrying
She was strangely calm - I found it quite disturbing.
On one level I quite like the attention but on another level, I suppose I find it a bit disturbing.
I heard something rather disturbing at work this morning.
A disturbing trend for insurers has been a rise in fraudulent claims.
It's disturbing that such a prominent politician is so easily led.

SMART Vocabulary: related words and phrases

Causing anxiety and worry
alarming
alarmingly
bite
catch up with someone
come back to bite someoneidiom
disturb
dread
frighten someone/something away/off
get/go beyond a jokeidiom
give someone the jimjamsidiom
give someone the jittersidiom
gnaw
oppressive
rattle
roost
stressfully
suspenseful
suspensefully
suspensive
swatting

Related word