1. Contrary to or forbidden by law
   "an illegitimate seizure of power"
   - illicit, outlaw, outlawed, unlawful 
2. Of marriages and offspring; not recognized as lawful

1. The illegitimate offspring of unmarried parents
   - by-blow, love child, illegitimate child

Derived forms: illegitimates

See also: adulterine, base [archaic], baseborn [archaic], bastardly, fatherless, illegal, illegitimately, invalid, left-handed, misbegot, misbegotten, spurious, unauthorised [Brit], unauthorized, unlawful, wrongful

Type of: issue, offspring, progeny

Antonym: legitimate

Encyclopedia: Illegitimate

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