Blunt

Adjective

 * 1) Having a thick edge or point, as an instrument; not sharp.
 * 2) Dull in understanding; slow of discernment; opposed to acute.
 * 3) Abrupt in address; plain; unceremonious; wanting the forms of civility; rough in manners or speech.
 * 4) Hard to impress or penetrate.
 * 5) Slow or deficient in feeling: insensitive

Noun

 * 1) A fencer's foil.
 * 2) A short needle with a strong point.
 * 3)  A marijuana cigar.

Verb

 * 1) To dull the edge or point of, by making it thicker; to make blunt.
 * 2)  To repress or weaken, as any appetite, desire, or power of the mind; to impair the force, keenness, or susceptibility, of; as, to blunt the feelings.

Adverbs for Blunt
stupidly; boorishly; ignorantly; unintentionally; deliberately; sullenly; unceremoniously; ironically; unnecessarily; disagreeably; unpardonably; inexcusably; Insolently; unpleasantly; characteristically; ruggedly; honestly; pertly; peevishly; sternly; severely; harshly; doggedly; rudely; captiously; discourteously;  uncivilly;   ungraciously; moodily; morosely; perversely; bitterly; coolly; clumsily; ineptly; exasperatingly.

Synonyms for Blunt

 * dull, pointless, coarse
 * stupid, obtuse
 * curt, short, rude, brusque, impolite, uncivil, harsh
 * bluff, forthright, rough, stolid, direct.

Antonyms for Blunt
subtle, tactful, polite, suave.

Derived terms

 * bluntly
 * bluntness

Thesaurus
forthright, frank, frankhearted, free, free hand, free-acting, free-going, free-moving, free-speaking, free-spoken, free-tongued, freehanded, freeze, frigid, frosted, frosty, frozen, genuine, gross-headed, gruel, gruff, guileless, harsh, heart-to-heart, heartless, heavy, hebetate, hebetudinous, icy, immovable, impassible, impassive, impolite, inconsiderate, indelicate, indispose, inexcitable, ingenu, ingenuous, innocent, insensitive, insusceptible, jack, kayo, keep within bounds, knock out, knock senseless, knock stiff, knock unconscious, lay, lay low, lay out, lenify, lessen, lighten, mitigate, moderate, modulate, mollify, mull, naive, narcotize, nonemotional, numb, objective, obscure, obtund, obtuse, open, openhearted, out of touch, outspoken, palliate, palsy, paralyze, passionless, plain, plain-spoken, play down, pointless, put off, put to sleep, quench, rattle, reduce, reduce the temperature, repel, repress, restrain, retund, rough, round, rounded, rude, sap, self-absorbed, severe, shake, shake up, sharp, short, simple, simplehearted, simpleminded, sincere, single-hearted, single-minded, slacken, slow, slow down, slow-witted, sluggish, smoothed, smother, snippety, snippy, sober, sober down, soften, soften up, soothe, soulless, spiritless, stifle, straight, straight-out, straightforward, stun, stupefy, subdue, suppress, surly, tame, temper, thick-brained, thick-headed, thick-pated, thick-witted, thickskulled, thoughtless, tone down, transparent, truculent, trustful, trusting, tune down, turn, turn aside, turn away, turn from, turn off, unaffectionate, unbrace, unceremonious, unchecked, uncivil, uncomplicated, uncompromising, unconstrained, undermine, underplay, undiplomatic, unedged, unemotional, unequivocal, unfeeling, ungracious, unguarded, unimpassioned, unimpressionable, unloving, unman, unnerve, unpassionate, unpointed, unreserved, unresponding, unresponsive, unrestrained, unsharp, unsharpened, unsophisticated, unstrengthen, unstring, unsusceptible, unsuspicious, unsympathetic, untouchable, unwary, weaken, wean from, wooden, worn, abate, abrupt, affectless, aggressive, allay, alleviate, anesthetize, anesthetized, arctic, artless, assuage, attemper, attenuate, autistic, bank the fire, bate, bearish, beastly, bedaze, benumb, besot, bluff, blunt-edged, blunt-ended, blunt-pointed, blunt-witted, blunted, bluntish, blur, born yesterday, brash, brass, bread, brief, broad, brusque, cabbage, candid, catatonic, cavalier, chasten, childlike, chill, chilly, chips, chloroform, churlish, cold, cold as charity, cold-blooded, coldcock, coldhearted, confiding, constrain, control, cool, cramp, cripple, crusty, curt, damp, dampen, de-emphasize, deaden, debilitate, deflect, desensitize, deter, devitalize, dim, dim-witted, diminish, dinero, direct, disable, disaffect, discourage, discourteous, disedge, disincline, disinterest, dispassionate, distract, divert, do-re-mi, dope, dopey, downplay, downright, draw the teeth, drug, drugged, dull, dull of mind, dull-edged, dull-headed, dull-pated, dull-pointed, dull-witted, dulled, dullish, edgeless, efface, emotionally dead, emotionless, enervate, enfeeble, etherize, eviscerate, exhaust, explicit, extenuate, faired, fat-witted,

Etymology
Possibly from blundra.