Synonyms and related words :
abrupt, absurd, aimless, arid, asinine, barren, blah, blank, bloodless, bluff, blunt, blunt-edged, blunt-ended, blunt-pointed, blunted, bluntish, bootless, characterless, cold, colorless, dead, dismal, draggy, drearisome, dreary, dry, dryasdust, dull, dull-edged, dull-pointed, dulled, dullish, dusty, edgeless, effete, elephantine, empty, etiolated, fade, faired, fatuous, feckless, flat, fruitless, futile, heavy, ho-hum, hollow, impotent, inane, ineffective, ineffectual, inexcitable, insignificant, insipid, jejune, leaden, lifeless, low-spirited, meaningless, no go, nonsensical, obtuse, of no use, pale, pallid, pedestrian, plodding, poky, ponderous, preposterous, purportless, purposeless, ridiculous, rounded, senseless, silly, slow, smoothed, solemn, spiritless, sterile, stiff, stodgy, stuffy, stupid, superficial, superfluous, tasteless, tedious, unavailing, unedged, unlively, unmeaning, unpointed, unproductive, unsharp, unsharpened, useless, vain, vapid, wooden, worthless