plain

apparent appreciable artless audible austere bald bare-bones blank blatant bold bolder broad broadest broader candid certain clean cleanest clear-cut clear clearest clearer common commonest comprehensible conspicuous conventional crashing crystal clear definitive definite demonstrative direct discernible distinct down and dirty dowdy downright dry dull dull duller duller easier easiest easy elementary everyday evident expanses expanse explicit express familiar featureless flat folksy formulaic forthright frank frumpy frumpish genuine grassland gross hard harder homely homely honest homespun household ignoble inarguable inconspicuous incontestable ingenuous insipid intelligible known knowable legible levels level level literal low lucid manifest meadow matter-of-fact meadows meek mesa mere modest more evident more known more obvious more open more open more self evident more self evident more self-evident more self-evident more selfexplanatory more selfexplanatory most certain more readable most self-evident most self-evident most self explanatory most self explanatory most selfexplanatory most selfexplanatory more apparent more modest more visible most apparent more undisputable most noticeable most self-explanatory most self-explanatory more familiar more self explanatory more self explanatory more natural more natural most obvious most self evident most self evident more legible more selfevident more selfevident more understandable more understandable most restrained most known more self-explanatory more self-explanatory most selfevident most selfevident most undisputable mousy naive naked natural natural noticeable obvious openhearted open and shut/open-and-shut open-and-shut open open ordinary outspoken overt palpable patent pellucid perspicuous plateau plane plainspoken plateaus point-blank poor prairies prairie prima facie public pure purest quiet quietest quieter readable restrained round routine rudimental rustic rustic savanna savannas savannas savanna/savannah savannahs seeable see-through self-explanatory self-evident/self-explanatory self-evident sensory simpler simpler simpler simple simple simple sincere sincerest slenderer slenderest slender smoother smoothest smooth sober spartan stark steppe straight-from-the-shoulder straightforward straightforward straight straight straight-shooting straight-out table tangible tasteless transparent transparent unaffected ugly unambiguous unblended unassuming unattractive unappealing unassailable unbounded unconcealed unconspicuous understandable understandable undiluted undiluted undisputable undistinguished unembellished unembellished unequivocal unexciting unexceptional unfinished unmistakable unostentatious unnoticeable unpretentious unremarkable unrelieved unsophisticated unsubtle unvarying used to usual valley valleys vanilla very viewable visible well-defined