illegitimate

1. The illegitimate offspring of unmarried parents (synset 109862211)
   is a type of: issue, offspring, progeny - the immediate descendants of a person
   same as: bastard, by-blow, illegitimate child, love child, whoreson

1. Contrary to or forbidden by law (synset 301406764)
   "an illegitimate seizure of power"; "illicit trade"; "an outlaw strike"; "unlawful measures"
   similar to: illegal - prohibited by law or by official or accepted rules
   same as: illicit, outlaw, outlawed, unlawful
2. Of marriages and offspring;
   Not recognized as lawful (synset 301410437)
   also:

   • unauthorised, unauthorized - not endowed with authority
   • illegal - prohibited by law or by official or accepted rules
   • invalid - having no cogency or legal force
   similar to:

   • adulterine - conceived in adultery
   • base, baseborn - illegitimate
   • bastardly, misbegot, misbegotten, spurious - born out of wedlock
   • fatherless - not having a known or legally responsible father
   • left-handed - (of marriages) illicit or informal
   • unlawful, wrongful - having no legally established claim

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