aimless, airy, amorphous, asinine, birdbrained, birdwitted, brainless, buxom, capricious, casual, catchpenny, childish, desultory, disarticulated, discontinuous, disjunct, disordered, dispersed, disproportionate, dizzy, empty, empty-headed, erratic, fatuous, featherbrained, featherheaded, fitful, flighty, flimsy, flip, flippant, fluffy, fluttery, foolish, formless, fribble, fribbling, frothy, futile, gaga, giddy, giddy-brained, giddy-headed, giddy-pated, giddy-witted, gleeful, gratuitous, haphazard, harebrain, harebrained, hilarious, hit-or-miss, idle, immethodical, inane, inchoate, incoherent, inconsequential, indiscriminate, insignificant, irregular, irresponsible, jocular, jocund, jolly, jovial, joyful, joyous, laughter-loving, light, meaningless, merry, minor, mirth-loving, mirthful, misshapen, niggling, nonsymmetrical, nonsystematic, nonuniform, nugacious, nugatory, orderless, otiose, paltry, peripheral, petty, planless, playful, promiscuous, puerile, random, rattlebrained, rattleheaded, rattlepated, rejoicing, risible, scatterbrained, scramblebrained, senseless, shallow, shallow-headed, shallow-minded, shallow-pated, shallow-witted, shapeless, shatterbrained, silly, slender, slight, small-time, spasmodic, sporadic, straggling, straggly, superficial, systemless, thoughtless, trifling, trite, trivial, two-bit, twopenny, unarranged, unclassified, undirected, ungraded, unimportant, unjoined, unmethodical, unordered, unorganized, unprofound, unsorted, unsymmetrical, unsystematic, ununiform, vacuous, vague, vain, vapid, volatile, wandering, windy, witless, worthless
caprice, fancy, humor, whim, whimsy, whimsey, whimwham, crotchet, capriccio, quirk, freak, maggot, fad, vagary, prank, fit, flimflam, escapade, boutade, wild-goose chase, capriciousness, kink, capricious, erratic, eccentric, fitful, hysterical, full of whims, maggoty, inconsistent, fanciful, fantastic, whimsical, crotchety, kinky, particular, humorsome, freakish, skittish, wanton, wayward, contrary, captious, arbitrary, unconformable, penny wise and pound foolish, fickle, frivolous
, sleeveless, giddy, volatile, by fits and starts, without rhyme or reason, nil fuit unquain sic inipar sibi, the deuce is in him.
unimportance, insignificance, nothingness, immateriality, triviality, levity, frivolity, paltriness, poverty, smallness, vanity, matter of indifference, no object, nothing, nothing to signify, nothing worth speaking of, nothing particular, nothing to boast of, nothing to speak of, small matter, no great matter, trifling matter, mere joke, mere nothing, hardly anything, scarcely anything, nonentity, small beer, cipher, no great shakes, peu de chose, child's play, kinderspiel, toy, plaything, popgun, paper pellet, gimcrack, gewgaw, bauble, trinket, bagatelle, Rickshaw, knickknack, whim-wham, trifle, trifles light as air, yankee notions, trumpery, trash, rubbish, stuff, fatras, frippery, leather or prunello, chaff, drug, froth bubble smoke, cobweb, weed, refuse, scum, joke, jest, snap of the fingers, fudge, fiddlestick, fiddlestick end, pack of nonsense, mere farce, straw, pin, fig, button, rush, bulrush, feather, halfpenny, farthing, brass farthing, doit, peppercorn, jot, rap, pinch of snuff, old son, cent, mill, picayune, pistareen, red cent, minutiae, details, minor details, small fry, dust in the balance, feather in the scale, drop in the ocean, flea-bite, molehill, nine days' wonder, ridiculus mus, flash in the pan, much ado about nothing, unimportant, of little account, of small account, of no account, of little importance, of no importance, immaterial, unessential, nonessential, indifferent, subordinate, mediocre, passable, fair, respectable, tolerable, commonplace, uneventful, mere, common, ordinary, inconsiderable, so-so, insignificant, inappreciable, trifling, trivial, slight, slender, light, flimsy, frothy, idle, puerile, airy, shallow, weak, powerless, frivolous
, petty, niggling, piddling, peddling, fribble, inane, ridiculous, farcical, finical, finikin, fiddle-faddle, fingle-fangle, namby-pamby, wishy-washy, milk and water, poor, paltry, pitiful, contemptible, sorry, mean, meager, shabby, miserable, wretched, vile, scrubby, scrannel, weedy, niggardly, scurvy, putid, beggarly, worthless, twopennyhalfpenny, cheap, trashy, catchpenny, gimcrack, trumpery, one- horse, not worth the pains, not worth while, not worth mentioning, not worth speaking of, not worth a thought, not worth a curse, not worth a straw, beneath notice, unworthy of notice, beneath regard, unworthy of regard, beneath consideration, unworthy of consideration, de lana caprina, vain, slightly, rather, somewhat, pretty well, tolerably, for aught one cares, Int, no matter!, pish!, tush!, tut!, pshaw!, pugh!, pooh, pooh-pooh!, fudge!, bosh!, humbug!, fiddlestick, fiddlestick end!, fiddlededee!, never mind!, n'importe!, what signifies it, what boots it, what of it, what of that, what matter, what's the odds, a fig for', stuff!, nonsense!, stuff and nonsense, magno conatu magnas nugas, le jeu ne vaut pas la chandelle, it matters not, it does not signify, it is of no consequence, it is of no importance, elephantus non capit murem, tempete dans un verre d'eau.
intuition, instinct, association, hunch, gut feeling, presentiment, premonition, rule of thumb, superstition, astrology, faith (supposition), sophistry, paralogy, perversion, casuistry, jesuitry, equivocation, evasion, chicane, chicanery, quiddet, quiddity, mystification, special pleading, speciousness, nonsense, word sense, tongue sense, false reasoning, vicious reasoning, circular reasoning, petitio principii, ignoratio elenchi, post hoc ergo propter hoc, non sequitur, ignotum per ignotius, misjudgment, false teaching, sophism, solecism, paralogism, quibble, quirk, elenchus, elench, fallacy, quodlibet, subterfuge, subtlety, quillet, inconsistency, antilogy, a delusion, a mockery, and a snare, claptrap, cant, mere words, lame and impotent conclusion, meshes of sophistry, cobwebs of sophistry, flaw in an argument, weak point, bad case, overrefinement, hairsplitting, intuitive, instinctive, impulsive, independent of reason, anterior to reason, gratuitous, hazarded, unconnected, unreasonable, illogical, false, unsound, invalid, unwarranted, not following, inconsequent, inconsequential, inconsistent, absonous, absonant, unscientific, untenable, inconclusive, incorrect, fallacious, fallible, groundless, unproved, non sequitur, it does not follow, deceptive, sophistical, jesuitical, illusive, illusory, specious, hollow, plausible, ad captandum, evasive, irrelevant, weak, feeble, poor, flimsy, loose, vague, irrational, nonsensical, foolish, frivolous
, pettifogging, quibbling, finespun, overrefined, at the end of one's tether, au bout de son latin, intuitively, by intuition, illogically, non constat, that goes for nothing.
imbecility folly, want of intelligence &c, want of intellect, shadowness, silliness, foolishness, imbecility, incapacity, vacancy of mind, poverty of intellect, weakness of intellect, clouded perception, poor head, apartments to let, stupidity, stolidity, hebetude, dull understanding, meanest capacity, shortsightedness, incompetence, one's weak side, not one's strong point, bias, infatuation, simplicity, puerility, babyhood, dotage, anility, second childishness, fatuity, idiocy, idiotism, driveling, folly, frivolity, irrationality, trifling, ineptitude, nugacity, inconsistency, lip wisdom, conceit, sophistry, giddiness, eccentricity, extravagance, rashness, act of folly, unintelligent, unintellectual, unreasoning, mindless, witless, reasoningless, brainless, halfbaked, having no head, not bright, inapprehensible, weak headed, addle headed, puzzle headed, blunder headed, muddle headed, muddy headed, pig headed, beetle headed, buffle headed, chuckle headed, mutton headed, maggoty headed, grossheaded, beef headed, fat witted, fat-headed, weak-minded, feeble-minded, dull minded, shallow minded, lack- brained, rattle-brained, rattle headed, half witted, lean witted, short witted, dull witted, blunt-witted, shallow-pated, clod-pated, addle- pated, addle-brained, dim-sighted, short-sighted, thick-skulled, weak in the upper story, shallow, borne, weak, wanting, soft, sappy, spoony, dull, dull as a beetle, stupid, heavy, insulse, obtuse, blunt, stolid, doltish, asinine, inapt, prosaic, hebetudinous, childish, child-like, infantine, infantile, babyish, babish, puerile, anile, simple, old-womanish, fatuous, idiotic, imbecile, driveling, blatant, babbling, vacant, sottish, bewildered, blockish, unteachable Boeotian, Boeotic, bovine, ungifted, undiscerning, unenlightened, unwise, unphilosophical, apish, simious, foolish, silly, senseless, irrational, insensate, nonsensical, inept, maudlin, narrow-minded, bigoted, giddy, rash, eccentric, foolish, unwise, injudicious, improper, unreasonable, without reason, ridiculous, absurd, idiotic, silly, stupid, asinine, ill-imagined, ill-advised, ill-judged, ill-devised, mal entendu, inconsistent, irrational, unphilosophical, extravagant, sleeveless, idle, pointless, useless, inexpedient, frivolous
, Davus sum non, a fool's bolt is soon shot clitellae bovi sunt im, fools rush in where angels fear to tread, il n' a ni bouche ni eperon, the bookful blockhead, ignorantly read, to varnish nonsense with the charms of sound.