From WordNet (r) 2.0 [wn]:
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
186 Moby Thesaurus words for "blah": Laodicean, Olympian, acedia, aloof, aloofness, apathetic, apathy, arid, ataraxia, ataraxy, balderdash, baloney, banausic, barren, benumbed, benumbedness, bilge, blah-blah, blahs, blank, blase, blather, blatherskite, bloodless, bop, bosh, broken-record, bull, bullshit, bunk, bunkum, characterless, cold, colorless, comatose, comatoseness, crap, dead, desensitized, detached, detachment, dim, disinterest, disinterested, dismal, dispassion, draggy, drearisome, dreary, dry, dryasdust, dull, dullness, dusty, effete, elephantine, empty, etiolated, everlasting, eyewash, fade, flapdoodle, flat, gas, guff, gup, harping, heartless, heartlessness, heavy, hebetude, hebetudinous, ho-hum, hogwash, hokum, hollow, hooey, hopeless, hopelessness, hot air, humbug, humdrum, in a stupor, inane, inappetence, indifference, indifferent, inexcitable, insipid, insouciance, insouciant, invariable, jejune, jog-trot, lack of appetite, languid, languidness, leaden, lethargic, lethargicalness, lethargy, lifeless, listless, listlessness, long-winded, low-spirited, malarkey, monotone, monotonous, moonshine, nonchalance, nonchalant, numb, numbed, numbness, pale, pallid, passive, passiveness, passivity, pedestrian, phlegm, phlegmatic, phlegmaticalness, phlegmaticness, piffle, plodding, pluckless, plucklessness, pointless, poky, ponderous, poppycock, prolix, resignation, resigned, resignedness, rot, scat, shit, singsong, slack, sloth, slow, sluggish, sluggishness, solemn, sopor, soporific, soporifousness, spiritless, spiritlessness, spunkless, spunklessness, sterile, stiff, stodgy, stoic, stuffy, stupefaction, stupefied, stupor, superficial, supine, supineness, tasteless, tedious, tommyrot, torpid, torpidity, torpidness, torpor, treadmill, tripe, uncaring, unconcern, unconcerned, uneventful, uninterested, unlively, unvarying, vapid, wind, withdrawn, withdrawnness, wooden
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