plain

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