U

uninvited

verb (used with object), in·vit·ed, in·vit·ing.

to request the presence or participation of in a kindly, courteous, or complimentary way, especially to request to come or go to some place, gathering, entertainment, etc., or to do something: to invite friends to dinner.
to request politely or formally: to invite donations.
to act so as to bring on or render probable: to invite accidents by fast driving.
to call forth or give occasion for: Those big shoes invite laughter.
to attract, allure, entice, or tempt.

verb (used without object), in·vit·ed, in·vit·ing.

to give invitation; offer attractions or allurements.

noun

Informal. an invitation.

adjective

not having been inviteduninvited guests

verb (ɪnˈvaɪt) (tr)

to ask (a person or persons) in a friendly or polite way (to do something, attend an event, etc)he invited them to dinner
to make a request for, esp publicly or formallyto invite applications
to bring on or provoke; give occasion foryou invite disaster by your actions
to welcome or tempt

noun (ˈɪnvaɪt)

an informal word for invitation

adj.1630s, from un- (1) “not” + past participle of invite (v.). v.1530s, a back-formation from invitation, or else from Middle French inviter (5c.), from Latin invitare. As a noun variant of invitation it is attested from 1650s. Related: Invited; inviting. n.1650s, from invite (v.).