piss-easy
maffling
easy as falling off a log
pimpsy
woodcock
easy as pie
simple as kiss your hand
unstuffy
paint by numbers
minimality
incomplex
waltz
simplex
keep it simple, stupid
spell things out
Barney-style
leastwise
monoplex
dumbed-down
uniplex
trivially
sell
piece of piss
plain
basicity
oversimple
stock
bludge
yeasty
mawkin
unembellished
unembroidered
penny-ante
plainful
lor
unpretended
pro-
open-and-shut
no problem
like a bowl in a china shop
minimally
easy peasy lemon squeezy
low-tech
spell out
nontaxing
vlakte
layup
basic