1. Prohibited by law or by official or accepted rules
   "an illegal chess move"

1. Someone who has entered a country illegally, is staying longer than allowed by their visa, or is working without a work permit
   - illegal immegrant

Derived forms: illegals

See also: amerciable, banned, black, black-market, bootleg, contraband, criminal, dirty, embezzled, extrajudicial, extralegal, felonious, hot, illegality, illegally, illegitimate, ill-gotten, illicit, ineligible, irregular, legality, misappropriated, misbranded, mislabeled [US], mislabelled [Brit, Cdn], nonlegal, outlaw, outlawed, penal, prohibited, punishable, smuggled, under-the-counter, unlawful, unratified

Antonym: legal

Encyclopedia: Illegal, Immoral and Fattening Illegal Illegal, unreported and unregulated fishing Illegal, Unreported and Unregulated

• evoked
• evoked potential
• evolute
• evolution
• evolutionarily
• evolutionary
• evolutionary trend
• evolutionism
• evolutionist
• evolve
• evolvement
• evulsion
• EW
• ewe
• Ewenki
• ewer
• Ewing's sarcoma
• Ewing's tumor
• Ewing's tumour
• ex
• ex ante
• ex cathedra
• ex gratia
• ex libris
• ex nihilo