Sentence:  As Broadway itself becomes increasingly weighted down by trite , heavy-handed , commercially successful musicals and inspirational problem dramas , the American theatre is going through an <WSD>inexorable</WSD> renaissance in that nebulous area known as `` off-Broadway '' . 
Meaning of the word marked with <WSD> tags:  impervious to pleas, persuasion, requests, reason; she would have none of him"- W.Churchill