Synonyms and related words :
Spartan, arid, ascetic, austere, bald, bare, barren, candid, common, commonplace, direct, dry, dull, earthbound, flat, frank, homely, homespun, humdrum, infecund, infertile, insipid, lean, literal, matter-of-fact, mundane, natural, neat, open, ordinary, pedestrian, plain, plain-speaking, plain-spoken, poetryless, prosaic, prosing, prosy, pure, rustic, severe, simple, simple-speaking, sober, spare, staid, stark, stolid, straightforward, stuffy, tiresome, unadorned, unaffected, unembellished, unfanciful, unideal, unidealistic, unimaginative, unimpassioned, uninspired, uninventive, unoriginal, unpoetic, unromantic, unromanticized, unvarnished, vapid