unassurance
nonassurance
incertain
unsure
uncertain
unfearingness
reassurance
letdown
disappointment
misgiving
unconfidence
apprehensiveness
timid
trepidatious
unassuredly
comfortless
like a cat in a strange garret
fumble
unconcern
inconvincibility
inapprehension
unconvincibility
grope
doubtful
unpersuasion
willies
qualm
unassuring
panophobia
uneasy
unacknowledgment
wavering
inexpectation
heartsickness
despondence
despondency
dis-ease
ehm
disconsolateness
nonexpectation
afraid
uncertainness
precarious
unstable
dubitation
not be 100 percent on something
nonrealization
inconfidence
doubtfulness
scepticalness