lor
patent
lah
there's nothing to it
easy as falling off a log
pimpsy
piss-easy
easy as pie
simple as kiss your hand
spell out
plain as Dunstable highway
open-and-shut
easy peasy
ELI5
cake walk
ultrasimple
supereasy
straightforward
nothing to it
simplistic
forthright
transparent
simples
spell things out
clear cut
in front of one's nose
spell it out
supersimple
water is wet
easy as 123
cut and dried
easy as ABC
onefold
no kidding
oh really
like taking candy from a baby
plainful
straightforwardly
obviousness
easyish
plain sailing
clear as crystal
mick
smooth
eathy
downhill
nimps
bada bing bada boom
accessible
et cetera
shine
see with half an eye
easify
open book
purely and simply
loud and clear
incontrovertibly
oversightly
provably
demonstrably
mah
simpleness
pellucid
proplet
basic
obviosity
hit the nail on the head
interpreting
rendering
rendition
decomplication
easy
interpretation
stock
uncomplication
cinchy
stone cold
expositional
uncryptic
hyperclear
Lapalissian
plaintively
haplo-
self-explanatory
no-brainer
straight from the shoulder
res ipsa loquitur
put across
basicity
Irish hint
painfully obvious
child's play
dumbed-down
piece of piss
uncomplicated
formulate
unpretentious
obviously