ILLEGITIMATE

illegitimate, illicit, outlaw, outlawed, unlawful

(adjective) contrary to or forbidden by law; “an illegitimate seizure of power”; “illicit trade”; “an outlaw strike”; “unlawful measures”

illegitimate

(adjective) of marriages and offspring; not recognized as lawful

bastard, by-blow, love child, illegitimate child, illegitimate, whoreson

(noun) the illegitimate offspring of unmarried parents

Source: WordNet® 3.1

Etymology

Adjective

illegitimate (comparative more illegitimate, superlative most illegitimate)

Not conforming to known principles, or established or accepted rules or standards.

Synonym: invalid

Antonym: valid

Not in accordance with the law.

Synonyms: illegal, illicit, unlawful

Antonym: legal

Not sanctioned by marriage.

Born to unmarried parents.

Synonym: natural

(dated) Having a child or children with a person to whom one is not married.

Not correctly deduced.

Synonyms: illogical, invalid

Antonyms: logical, valid

Not authorized by good usage; not genuine.

Synonym: spurious

(botany) Involving the fertilization of pistils by stamens not of their own length, in heterogonously dimorphic and trimorphic flowers.

Synonyms

• See also illegitimate

Antonyms

• legitimate

Noun

illegitimate (plural illegitimates)

A person born to unmarried parents.

Synonyms: natural child, lovechild, bastard

Verb

illegitimate (third-person singular simple present illegitimates, present participle illegitimating, simple past and past participle illegitimated)

(transitive) To make illegitimate.

Source: Wiktionary

Il`le*git"i*mate, a.

1. Not according to law; not regular or authorized; unlawful; improper.

2. Unlawfully begotten; born out of wedlock; bastard; as, an illegitimate child.

3. Not legitimately deduced or inferred; illogical; as, an illegitimate inference.

4. Not authorized by good usage; not genuine; spurious; as, an illegitimate word. Illegitimate fertilization, or Illegitimate union (Bot.), the fertilization of pistils by stamens not of their own length, in heterogonously dimorphic and trimorphic flowers. Darwin.

Il`le*git"i*mate, v. t. [imp. & p. p. Illegitimated; p. pr. & vb. n. Illegitimating.]

Definition: To render illegitimate; to declare or prove to be born out of wedlock; to bastardize; to illegitimatize. The marriage should only be dissolved for the future, without illegitimating the issue. Bp. Burnet.

Source: Webster’s Unabridged Dictionary 1913 Edition