not difficult

clean elementary plain quiet smooth straightforward transparent uncomplicated

cinch light picnic snap walkover

child's play easy as pie effortless facile incomplex intelligible lucid manageable mild no problem no sweat piece of cake self-explanatory simple as ABC uninvolved unmistakable untroublesome

abstruse complex complicated difficult hard intricate involved unclear vague

aware cluttered convoluted decorated embellished exacting intelligent jumbled mature older on-the-ball ornate smart sophisticated unintelligible

effortless obvious painless simple straightforward

apparent basic child's play cinch clear easily done elementary evident manageable no bother no problem no sweat no trouble not burdensome nothing to it piece of cake simple as ABC snap uninvolved

complicated difficult hard unclear