ˌoff ˈBroadway BrE AmE adverb American English
1 . (of theatre in New York) not in the main professional group of theatres, but more unusual or ↑ experimental in nature:
His new play about life in a women's prison is opening off Broadway.
2 . off-off Broadway more unusual, or perhaps extreme, than off Broadway
—off-Broadway adjective :
an off-Broadway production of Hamlet