incertain
uncertain
unsure
analytic
awkward
blankminded
callow
dumb
empty
empty-headed
examinational
examinatorial
examining
explorational
explorative
exploratory
fact-finding
feeling
gauche
green
heuristic
ignorant
inane
indagative
inexperienced
innocent
inspectional
inspectorial
investigational
investigative
investigatory
know-nothing
naive
nescient
raw
simple
strange to
tentative
testing
trying
unacquainted
unapprized
uncomprehending
unconversant
unenlightened
unfamiliar
unilluminated
uninformed
uninitiated
unintelligent
unknowing
unposted
unripe
coping
hoping
moping
roping
scoping
sloping