Illegal
Illegal adjective - Contrary to or forbidden by law.
Usage example: it is illegal to import those birds into this country
Villainous and illegal are semantically related In some cases you can use "Villainous" instead an adjective "Illegal".
Nearby Words: illegality, illegally
Villainous
Villainous adjective - Not conforming to a high moral standard; morally unacceptable.
Usage example: villainous behavior that made him one of the most notorious figures in history and gave rise to the legend of Dracula
Illegal and villainous are semantically related in criminal topic. Sometimes you can use "Illegal" instead an adjective "Villainous".
Mutual synonyms
Both words in one sentence
-
He goes to confront the beavers, but instead finds the villainous lumberjack Blacque Jacques Shellacque building an illegal rock dam in order to control the water supply and profit off the scarcity.
Source: Western Animation / Wet Hare - Gorilla Monsoon frequently would point out "Turnabout is fair play" that a heel lost by his own illegal tactics backfiring on him (e.g., his manager accidentally hits him with a signature weapon) or the face is able to use the same illegal tactic to turn the tables on his villainous foe.
Source: Beat Them at Their Own Game -
The ambassador of the Reach is likewise presented as a villainous mouthpiece whose words are poison, but he actually never makes as single accusation regarding the league that isn't both true and describing something that's extremely illegal for very good reasons.
Source: Strawman Has a Point
Cite this Source
Villainous and Illegal. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/illegal/villainous
Illegal & Villainous. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/illegal/villainous>.
Villainous or Illegal. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/illegal/villainous.
Google Ngram Viewer shows how "illegal" and "villainous" have occurred on timeline