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illegal

illegal

1.0
Not allowed by law or official rules
  • adjective
  • /ɪˈliːɡəl/
translation icon : ilegal
  • In my opinion, the search of the suspect's quarters was illegal.
  • illegal drugs
  • illegal immigrants
  • illegal immigration

Did you know that it's illegal to own a crow?

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Examples

  • So some things are now illegal that were legal years ago.

  • Just one problem: football gambling is illegal in all but two of the fifty states.

    Fiction book (1991)
  • What I did was not illegal, but I knew better.

  • And those people getting illegal weapons will stop.

  • At the moment in the UK it's illegal, which is fine by me.

  • Did you know that it's illegal to own a crow?

  • Both of these forms of euthanasia are illegal and considered murder everywhere in the United States.

    Academic text (2011)
  • According to this, you were arrested in 1925 for illegal possession of explosives.

  • Efforts to suppress the growth of opiates and the illegal drug trade have failed.

    Academic text (2011)
  • It is illegal to drive without a valid license in most countries.

Synonyms

off-limits
vsillegal
102 4.6

Not allowed to enter, use, or talk about

covers forbidden acts more generally, not only places or topics
forbidden
vsillegal
96 3.2

Not allowed by law, rules, or custom

focuses more on legal or formal wrongness rather than tone
unlawful
vsillegal
71 4.0

Not allowed by law

also covers breaches of official or accepted nonlegal rules
illicit
vsillegal
66 6.3

Not allowed by law or social rules

is similar but emphasizes formal legal and official rules
illegitimate
vsillegal
  • Formal
31 6.1

Not allowed by law

is the straightforward label for rule or law breaches
out-of-bounds
vsillegal
18 3.5

Outside the allowed area or not allowed by the rules

applies more broadly to acts that break laws or rules
verboten
vsillegal
7 9.2

Not allowed by rules or by social custom

is more neutral and focused on legal or official prohibition
impermissible
vsillegal
  • Formal
6 7.7

Not allowed by rules, laws, or official standards

is the common word used for official or legal prohibition
prohibited
vsillegal
  • Formal
1 3.7

Not allowed by law or by an authority

is broader, applying to any rule or law violation
unallowable
vsillegal
  • Formal
1 6.4

Not allowed by rules or laws

is the central term for actions breaking law or official rules
outlawed
vsillegal
5.0

The law bans it

includes those cases but also nonlegal rule breaches
proscribed
vsillegal
  • Formal
8.2

Not allowed by law or by people in charge

is the general term for rule or law violations
banned
vsillegal
1.1

Not allowed by law or by people in charge

covers both formal bans and broader rule breaches
in prohibitum
vsillegal
  • Formal
9.9

A thing forbidden by law or official rules

is the everyday legal or rule-based description rather than a term

Antonyms

2.5

Relating to the law, lawyers, or what the law allows

Compounds

4 5.3

Having banned things like drugs or guns when the law does not allow it

1 3.8

Taking goods or people across a border in secret and against the law

How Legal

legal
2.5
authorized
1 3.6
unauthorized
  • US
110 4.5
illegal
1.0
criminal
2.8

Surface Forms

illegal positive

Morphology

illegal = legal (transparent) = il + legal

The prefix 'il-' clearly negates the meaning of 'legal', forming 'illegal'.

Etymology

Illegal comes from two parts: in- meaning 'not' and legal meaning 'allowed by law'. So to be illegal is to be 'not allowed by law'.