Find Antonyms

illegal Antonyms

Opposite of illegal

Because the opposite of illegal shifts with each meaning, the 10 antonyms and opposite words below are separated across 3 exact definitions and ranked by contrast strength.
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• adjective (Context 1)

Contrary to or forbidden by law, especially criminal or statutory law.

Usage Example

"It is legal to drive a motor vehicle without a valid license."

Strongest
legal
lawful
legitimate
Strong
licit
permissible
authorized

• adjective (Context 2)

Not permitted by the official rules of a sport, game, or computing system.

Usage Example

"The referee penalized the defender for making an legal tackle near the goal line."

Strongest
legal
valid
Strong
allowed
permissible

• noun (Context 3)

A foreign national who is living or working in a country without official authorization or legal status (often considered offensive).

Usage Example

"Advocacy groups criticized the broadcast for referring to undocumented workers as illegals."

Strong
citizen
national

Similar words to illegal

Words similar to illegal shift depending on context. Common synonyms include:

unlawful
illicit
invalid
prohibited
forbidden
illegitimate
unauthorized
criminal
See all synonyms of illegal

• Nearby Words

ignorantly
ignore
ill
illegal
illegality
illegalization
illegalize

Cite this Entry

Wordmom. (2026). Antonyms for Illegal. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/illegal
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