plain

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