plain

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