As an adjective unauthorized
is not having any authority.
As an adverb unauthorizedly is
in an unauthorized way; without authorization.
unauthorized
English
Adjective
(-)
not having any authority
without official authorization
Usage notes
* Objects: autobiography, copying, distribution, disclosure, publication, person, warfare, and a variety of others.
unauthorizedly
English
Adverb
(-)
In an unauthorized way; without authorization.