This is the 13626th most frequent Russian word.
незаконными
"Unlawful" or "illegal."
The word "незаконными" is used to describe actions that are against the law.
Эти действия считаются незаконными в нашей стране.
These actions are considered illegal in our country.
Here, "незаконными" modifies the noun "operations," indicating their unlawful nature.
Он был арестован за участие в незаконными операциями.
He was arrested for involvement in illegal operations.
In this case, "незаконными" is used to describe the charges as being unlawful or baseless.