Illegitimate

• POS: Adjective
• HYPHEN: il=le=git=i=mate

CIDE DICTIONARY

Illegitimate, a. 

•  Not according to law; not regular or authorized; unlawful; improper.  [1913 Webster]
•  Unlawfully begotten; born out of wedlock; bastard; as, an illegitimate child.  [1913 Webster]
•  Not legitimately deduced or inferred; illogical; as, an illegitimate inference.  [1913 Webster]
•  Not authorized by good usage; not genuine; spurious; as, an illegitimate word.  [1913 Webster]

Illegitimate fertilization, or Illegitimate union (Bot.), the fertilization of pistils by stamens not of their own length, in heterogonously dimorphic and trimorphic flowers. Darwin.

Illegitimate, v. t. 

 To render illegitimate; to declare or prove to be born out of wedlock; to bastardize; to illegitimatize.  [1913 Webster]
"The marriage should only be dissolved for the future, without illegitimating the issue."  [1913 Webster]

OXFORD DICTIONARY

Illegitimate, adj., n., & v.
--adj.
1 (of a child) born of parents not married to each other.
2 not authorized by law; unlawful.
3 improper.
4 wrongly inferred.
5 physiologically abnormal.
--n. a person whose position is illegitimate, esp. by birth.
--v.tr. declare or pronounce illegitimate.

Derivative

illegitimacy n. illegitimately adv.

Etymology

LL illegitimus, after LEGITIMATE

THESAURUS

Illegitimate

actionable, affected, against the law, anarchic, anarchistic, anomic, apocryphal, artificial, assumed, bantling, bar sinister, baseborn, bastard, bastard child, bastardy, black-market, bogus, bootleg, brummagem, by-blow, chargeable, colorable, colored, contraband, contrary to law, counterfeit, counterfeited, criminal, distorted, dressed up, dummy, embellished, embroidered, ersatz, factitious, fake, faked, false, falsified, fatherless, feigned, felonious, fictitious, fictive, flawed, garbled, illegal, illegitimacy, illegitimate child, illicit, imitation, impermissible, improper, incorrect, invalid, irregular, junky, justiciable, lawless, love child, make-believe, man-made, misbegotten, miscreated, mock, natural, nonconstitutional, nonlegal, nonlicit, outlaw, outlawed, perverted, phony, pinchbeck, pretended, pseudo, punishable, put-on, quasi, queer, self-styled, sham, shoddy, simulated, so-called, soi-disant, spurious, supposititious, synthetic, tin, tinsel, titivated, triable, twisted, unallowed, unauthentic, unauthorized, unconstitutional, under-the-counter, under-the-table, ungenuine, unlawful, unnatural, unofficial, unreal, unstatutory, unwarrantable, unwarranted, warped, wrongful

ROGET THESAURUS

Illegitimate

Illegality

N illegality, lawlessness, illicitness, breach of law, violation of law, infraction of the law, disobedience, unconformity, arbitrariness, antinomy, violence, brute force, despotism, outlawry, mob law, lynch law, club law, Lydford law, martial law, drumhead law, coup d'etat, le droit du plus fort, argumentum baculinum, illegality, informality, unlawfulness, illegitimacy, bar sinister, trover and conversion, smuggling, poaching, simony, outlaw, bad man, v, offend against the law, violate the law, infringe the law, break the law, set the law at defiance, ride roughshod over, drive a coach and six through a statute, ignore the law, make the law a dead letter, take the law into one's own hands, smuggle, run, poach, illegal, unlawful, illegitimate, not allowed, prohibited, illicit, contraband, actionable, unwarranted, unwarrantable, unauthorized, informal, unofficial, injudicial, extrajudicial, lawless, arbitrary, despotic, despotical, corrupt, summary, irresponsible, unanswerable, unaccountable, expired, invalid, unchartered, unconstitutional, null and void, a dead letter, lawless, unregulated, illegally, with a high hand, in violation of law.

Undueness

N undueness, malum prohibitum, impropriety, illegality, falseness, emptiness of title, invalidity of title, illegitimacy, loss of right, disfranchisement, forfeiture, usurpation, tort, violation, breach, encroachment, presumption, assumption, seizure, stretch, exaction, imposition, lion's share, usurper, pretender, undue, unlawful, unconstitutional, illicit, unauthorized, unwarranted, disallowed, unallowed, unsanctioned, unjustified, unentitled, disentitled, unqualified, disqualified, unprivileged, unchartered, illegitimate, bastard, spurious, supposititious, false, usurped, tortious, undeserved, unmerited, unearned, unfulfilled, forfeited, disfranchised, improper, unmeet, unfit, unbefitting, unseemly, unbecoming, misbecoming, seemless, contra bonos mores, not the thing, out of the question, not to be thought of, preposterous, pretentious, would-be, filius nullius.

Deception

N deception, falseness, untruth, imposition, imposture, fraud, deceit, guile, fraudulence, fraudulency, covin, knavery, misrepresentation, bluff, straw-bail, straw bid, spoof, delusion, gullery, juggling, jugglery, slight of hand, legerdemain, prestigiation, prestidigitation, magic, conjuring, conjuration, hocus-pocus, escamoterie, jockeyship, trickery, coggery, chicanery, supercherie, cozenage, circumvention, ingannation, collusion, treachery, practical joke, trick, cheat, wile, blind, feint, plant, bubble, fetch, catch, chicane, juggle, reach, hocus, bite, card sharping, stacked deck, loaded dice, quick shuffle, double dealing, dealing seconds, dealing from the bottom of the deck, artful dodge, swindle, tricks upon travelers, stratagem, confidence trick, fake, hoax, theft, ballot-box stuffing, barney, brace game, bunko game, drop game, gum game, panel game, shell game, thimblerig, skin game, snare, trap, pitfall, decoy, gin, springe, springle, noose, hoot, bait, decoy-duck, tub to the whale, baited trap, guet-a-pens, cobweb, net, meshes, toils, mouse trap, birdlime, dionaea, Venus's flytrap, ambush, trapdoor, sliding panel, false bottom, spring-net, spring net, spring gun, mask, masked battery, mine, flytrap, green goods, panel house, Cornish hug, wolf in sheep's clothing, disguise, disguisement, false colors, masquerade, mummery, borrowed plumes, pattes de velours, mockery, copy, counterfeit, sham, make- believe, forgery, fraud, lie, a delusion a mockery and a snare, hollow mockery, whited sepulcher, painted sepulcher, tinsel, paste, junk jewelry, costume jewelry, false jewelry, synthetic jewels, scagliola, ormolu, German silver, albata, paktong, white metal, Britannia metal, paint, veneer, jerry building, man of straw, illusion, ignis fatuus, mirage, deceived, deceiving, cunning, prestigious, prestigiatory, deceptive, deceptious, deceitful, covinous, delusive, delusory, illusive, illusory, elusive, insidious, ad captandum vulgus, untrue, mock, sham, make-believe, counterfeit, snide, pseudo, spurious, supposititious, so-called, pretended, feigned, trumped up, bogus, scamped, fraudulent, tricky, factitious bastard, surreptitious, illegitimate, contraband, adulterated, sophisticated, unsound, rotten at the core, colorable, disguised, meretricious, tinsel, pinchbeck, plated, catchpenny, Brummagem, artificial, synthetic, ersatz, simulated, under false colors, under the garb of, under cover of, over the left, keep the word of promise to the ear and break it t, fronti nulla fides, ah that deceit should steal such gentle shapes, a quicksand of deceit, decipimur specie recti, falsi crimen, fraus est celare fraudem, lupus in fabula, so smooth, he daubed his vice with show of virtue.