(a.) Not complex; uncompounded; simple.

Attic Bohemian Ciceronian Mickey Mouse Spartan a certain absolute aesthetic affable amateur an any any one arrested artistic artless ascetic asinine atomic austere authentic awkward babbling backward bald bare base basic blankminded blithering bluff blunt bona fide born yesterday bovine brainless burbling butt callow candid card-carrying casual chaste cheerful childish childlike choice chump classic classical clean clean-cut clear clear as crystal clear as day clear-cut coherent comfortable common commonplace comprehensible confiding connected consistent cordial cozy crackbrained cracked crass crazy creamy credulous cretinistic cretinous crisp crystal-clear crystalline cullible cushy deceivable defined definite degage delicate deludable dense dim-witted dinkum direct discreet distinct dithering dopey doting driveling drooling dry dull dull-witted dumb dupable dupe easily understood easy easy as pie easygoing effortless eggshell either elegant elemental elementary empty empty-headed essential everyday excellent exclusive explicit exploitable express facile fall guy familiar fatuous feebleminded finished flat folksy following the letter foolable foolish forthright frank free and easy friendly fundamental garden garden-variety gauche genuine glib gloss good graceful gracile gracious green groping guileless gull gullible half-baked half-witted haymish hoaxable homelike homely homespun homey homish homogeneous honest honest-to-God hoodwinkable household humble humble-looking humble-visaged humblest humbugable idiotic ignorant illiterate imbecile imbecilic in good taste inane inartificial incomplex individual indivisible inexperienced inexpert inferior informal ingenu ingenuous inglorious innocent innocuous insensate integral intelligible intimate iridescent irreducible irregular know-nothing lawful lean least legitimate lifelike light limpid literal lone loose loud and clear low lowest lowliest lowly lucid luminous mark matter-of-fact maundering mean mellow mentally defective mentally deficient mentally handicapped mentally retarded mere mindless modest monadic mongoloid monistic monolithic moronic mother-of-pearl nacreous naive naked natural naturalistic neat nescient nitwitted nondescript not all there nothing to it oafish obtuse of a piece of choice of quality offhand offhanded one opalescent