plain

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