adj.
Pronunciation: - ' bi-d ə n
Variant: also un · bid \ - ' bid \
Function: adjective
Etymology: Middle English unbiden, unbeden, from Old English unbeden, from un- + beden, past participle of biddan to entreat ― more at BID
Date: before 12th century
: not bidden : UNASKED , UNINVITED <barged in unbidden >