disconcert
It was rather disconcerting to see that the work had not even started.
I found it disconcerting that everyone seemed to agree with her.
In a world of disconcerting change, we all want something we can cling to.
I had a disconcerting sense of having been through the situation before.

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