streamlined
egg of Columbus
smooth
easify
purely and simply
straightforward
stock
straightforwardly
nothing to it
plain as Dunstable highway
supersimple
clear cut
unconcerned
there's nothing to it
breathe freely
unquibbled
directly
plain sailing
onefold
simplemindedly
pave
porrectly
candid
chaste
open-and-shut
heart-to-heart
open
bada bing bada boom
supersimplification
easened
straightish
like taking candy from a baby
forthright
simplify
simplistic
easy peasy
easyish
lead-pipe cinch
besmooth
uncomplicated
smooth out
snug
open-hearted
smoothen
cut and dried
straight from the shoulder
facilitate
squarely
square
desimplify