Unauthorized synonyms and antonyms

Not official:

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Erroneous; fictitious:

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Not approved or sanctioned:

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Not sanctioned by custom or law; improper or unlawful.

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Forbidden; unallowed

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Proscribing or prohibiting, for example as according to a norm or standard

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Assuming the appearance of something; deceitful; hypocritical.

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(Of a person) put beyond the limits of the law, declared an outlaw or declared a criminal.

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(Radio) Designating or of an unwanted signal transmitted or received at other than the desired frequency

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unallowed

Not allowed, forbidden.

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unauthoritative

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illegal (related)

Prohibited by official rules:

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Forbidden; not allowed.

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The definition of contraband is not allowed to be imported or exported.

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Prohibited; not permitted by law (either civil or criminal law; see illegal).

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Breaking with convention or tradition; not orthodox.

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unpermitted

Not permitted; forbidden.

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Not sanctioned; not approved by a sanctioning body.

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allowable (antonym)

That can be allowed; permissible

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authorized (antonym)

Explicitly allowed.

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official (antonym)

The definition of official is authorized, or is someone who holds a position of authority.

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permitted (antonym)

not permitted

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Not authorised; having no authority.

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(Dated) unsound; worthless; irresponsible; unsafe

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fraudulent (related)

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improper (related)

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inadvertent (related)

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malicious (related)

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Find another word for unauthorized. In this page you can discover 30 synonyms, antonyms, idiomatic expressions, and related words for unauthorized, like: unofficial, apocryphal, unapproved, illicit, prohibited, proscriptive, counterfeit, outlawed, spurious, tabu and unallowed.