stock
clear cut
onefold
simplistic
uncomplicated
basic
nothing to it
ultrasimple
easy peasy
forthright
bog-standard
supersimple
straightforwardly
straightforward
smooth
plain as Dunstable highway
streamlined
commonplace
there's nothing to it
uncryptic
basical
cake walk
unembroidered
cut and dried
vlakte
purely and simply
bare-boned
conventional
easyish
mundane
plain sailing
trivial
unquibbled
candid
simplish
heart-to-heart
common-or-garden
open
common-and-garden
piss-easy
rondoletto
simple as kiss your hand
easy as pie
easy as falling off a log
unpretentious
up and down
day-to-day
pimpsy
overplain
haplic
basicity
plainly
plaintively
supereasy
down-to-earth
unpretended
eathy
nimps
downright
common
unterrific
downhill
mick
no-frills
plainful
easy as ABC
vanilla
easy as 123
ham-and-egger
decomplication
uncomplication
au naturel
unembellished
detailless
easy
unassumingness
extramundane
nonbasic
sincerity
child's play
unextraordinary
haplo-
plainness
common or garden variety
underlying
straight from the shoulder
elementarily
flatling
dizzy
cinch
rudimentally
directly
lor
plat
natural
gut course
easefully