Illegal

/ɪˈliːɡəl/

adjectiveBeginnerVery CommonLegal

Definitions

1

Against the law; forbidden by law.

/ɪˈliːɡəl/

adjectivenegativeBeginner
Legal

Against the law

It is illegal to park in a no-parking zone.

💡 Simply: Something is illegal if it breaks the rules or the law. Like, it's illegal to steal cookies from the cookie jar without asking!

👶 For kids: Something that is illegal is against the rules or the law. You can't do it because it's not allowed!

More Examples

2

The company was accused of illegal dumping of toxic waste.

3

Possession of certain drugs is illegal in many countries.

How It's Used

Law

"It is illegal to drive without a license."

Business

"The company was accused of illegal business practices."

Politics

"The government declared the protests illegal."

Idioms & expressions

illegal alien

A person who is in a country without legal permission.

"The government is debating policies concerning illegal aliens."

From Late Latin *illegalis*, from *in-* (not) + *legalis* (legal), from *lex* (law).

The word 'illegal' has been used since the 16th century, reflecting evolving legal concepts.

Memory tip

Think of the opposite of LEGAL. ILLEGAL things break the rules.

illegleilllegal

Usage

60%Spoken
40%Written