Uninvited (adjective)
Not invited
Uninvited (verb)
simple past tense and past participle of uninvite
Disinvite (verb)
To cancel an invitation to.
Wiktionary
Uninvited (adjective)
(of a person) arriving somewhere or acting without having been asked
“their privacy was disrupted by a series of uninvited guests”
Uninvited (adjective)
(of a thought or act) involuntary or unwarranted
“strange uninvited thoughts crossed her mind”
Oxford Dictionary