[BSG] For a while, official Honeywell Multics documentation policy tried to make the use of the term illegal illegal -- if an opcode or command was "not recognized as valid" in a certain circumstance or ever but still lawful in Massachusetts and Arizona, it was invalid, but not illegal
A KGB operative infiltrated into a target country and operating without the protection of diplomatic immunity
contrary to, or in violation of, human law; unlawful; illicit; hence, immoral; as, an illegal act; illegal trade; illegal love
Illegal immigrants or workers have travelled into a country or are working without official permission. Illegal immigrants or workers are sometimes referred to as illegals. a clothing factory where many illegals worked. not allowed by the law = unlawful legal. an illegal immigrant
If something is illegal, the law says that it is not allowed. It is illegal to intercept radio messages illegal drugs. + illegally il·legal·ly They were yesterday convicted of illegally using a handgun + illegality illegalities il·legal·ity There is no evidence of illegality