arcadian
authentic
bona fide
bucolic
candid
card-carrying
dinkum
direct
following the letter
genuine
good
guileless
homespun
honest
honest-to-God
inartificial
lawful
legitimate
lifelike
literal
native
natural
naturalistic
naturelike
original
pastoral
pure
real
realistic
rightful
rural
simon-pure
simple
sincere
sterling
straightforward
sure-enough
true to life
true to nature
true to reality
unadorned
unadulterated
unaffected
unartificial
unassumed
unassuming
unbeguileful
unbeguiling
uncalculating
uncolored