candid
careless
heart-to-heart
open
undistorted
unrefined
unskilled
aboveboard
arty
awkward
befoolable
big
bluff
blunt
born yesterday
broad
brusque
bungling
childlike
clumsy
confiding
crude
direct
downright
explicit
foolable
forthright
frank
frankhearted
free
free-speaking
free-spoken
free-tongued
genuine
green
guileless
gullible
half-assed
high-sounding
honest
humble
ignorant
imposing
in the raw
inadept
inapt
inartificial
inartistic
inattentive
incompetent
inefficient
amiable
boyish
cordial
fearless
heartfelt
ingenuous
naive
open-hearted
straightforward
unaffected
undisguised
unsophisticated
wistful
womanly