ilegal 英語で:

lawless act, attempt

‘it was a lawless, anarchic city

In a lawless outpost deep within the desert, everybody wore football shoulder pads and mohawks.

Better the naked and the honest than the rich and lawless.

unlawful activity that uses violence, threat or coercion for the purpose of atering out form of government

Employees do not know their rights in the case of unlawful termination of the employment contract by the employer.