Pyrrhonism
afraidness
apprehension
bashfulness
boggle
boggling
caution
cautiousness
compunction
demur
demurral
distrust
distrustfulness
doubt
doubtfulness
dubiety
dubiousness
falter
faltering
fear
fearfulness
half-belief
hesitance
hesitancy
hesitating
hesitation
humility
jumpiness
lack of self-confidence
lack of self-reliance
leeriness
misdoubt
misgiving
mistrust
mistrustfulness
modesty
objection
pause
protest
qualm
qualm of conscience
qualmishness
question
recoil
timidity
timidness
timorousness
unassertiveness
awkwardness
cordiality
coyness
deference
distaste
indecision
inexperience
kindliness
meekness
nervousness
perplexity
reluctance
reticence
shyness
trepidation
wariness