Synonyms and related words :
airy, arid, asinine, barren, betwixt and between, blah, bland, blank, bloodless, boring, catchpenny, changeable, characterless, cold, colorless, common, commonplace, dead, dilute, diluted, dismal, draggy, drearisome, dreary, driveling, dry, dryasdust, dull, dusty, effete, elephantine, empty, empty-headed, empty-minded, empty-pated, empty-skulled, etiolated, fade, fair, fair to middling, fairish, fatuous, flat, flavorless, flimsy, foolish, fribble, fribbling, frivolous, frothy, futile, gruelly, halfhearted, heavy, ho-hum, hollow, humdrum, idle, inane, indecisive, indifferent, inexcitable, infirm of purpose, infirm of will, innocuous, insipid, irresolute, jejune, lackluster, leaden, lifeless, light, low-spirited, matter-of-fact, mediocre, medium, middling, mild, milk-and-water, milky, moderate, modest, mundane, mushy, namby-pamby, neutral, nugacious, nugatory, of a kind, of a sort, of sorts, ordinary, otiose, pale, pallid, pappy, passable, pedestrian, plain, plodding, poetryless, pointless, poky, ponderous, prosaic, prosing, prosy, pulpy, rattlebrained, rattleheaded, respectable, sapless, savorless, scatterbrained, shallow, silly, slender, slight, slow, so-so, solemn, spiceless, spiritless, stale, sterile, stiff, stodgy, stuffy, superficial, tame, tasteless, tedious, thin, tiresome, tolerable, trifling, trite, trivial, unembellished, unflavored, unidealistic, unimaginative, unimpassioned, uninteresting, unlively, unpalatable, unpoetic, unromantic, unsavory, vacant, vacuous, vain, washy, watered, watered-down, watery, weak, wearisome, wearying, windy, wishy-washy, wooden