"stonewall" in the verb sense
1. stonewall
obstruct or hinder any discussion
"Nixon stonewalled the Watergate investigation"
"When she doesn't like to face a problem, she simply stonewalls"
2. stonewall
engage in delaying tactics or refuse to cooperate
"The President stonewalled when he realized the plot was being uncovered by a journalist"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License