unauthorized

As adjectives the difference between unauthorized and unallowed

is that unauthorized is not having any authority while unallowed is not allowed, forbidden.

As adjectives the difference between prohibited and unauthorized

is that prohibited is forbidden; unallowed while unauthorized is not having any authority.

As a verb prohibited

is (prohibit).

As a verb authorize

is to grant (someone) the permission or power necessary to do (something).

As an adjective unauthorized is

not having any authority.

As adjectives the difference between restricted and unauthorized

is that restricted is limited within bounds while unauthorized is not having any authority.

As a verb restricted

is (restrict).

As adjectives the difference between unauthorized and illegal

is that unauthorized is not having any authority while illegal is contrary to or forbidden by law, especially criminal law.

As a noun illegal is

an illegal immigrant.

As adjectives the difference between nonconforming and unauthorized

is that nonconforming is that does not conform, either to the rules of an established church, or to official regulations while unauthorized is not having any authority.

As adjectives the difference between decent and unauthorized

is that decent is appropriate; suitable for the circumstances while unauthorized is not having any authority.

As adjectives the difference between unauthorized and unapproved

is that unauthorized is not having any authority while unapproved is not approved.

As a verb approve

is to sanction officially; to ratify; to confirm.

As an adjective unauthorized is

not having any authority.