Synonyms for illegitimate

• (adj) illicit, outlaw, outlawed, unlawful, illegal (similar term)
  
  
• (adj) adulterine (similar term), base (similar term), baseborn (similar term), bastardly (similar term), misbegot (similar term), misbegotten (similar term), spurious (similar term), fatherless (similar term), left-handed (similar term), unlawful (similar term), wrongful (similar term), illegal (related term), invalid (related term), unauthorized (related term), unauthorised (related term), legitimate (antonym)
  
  
• (noun) bastard, by-blow, love child, illegitimate child, whoreson, offspring, progeny, issue
  
  

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