"stonewalling" in the noun sense
1. stonewalling
stalling or delaying especially by refusing to answer questions or cooperate
"stonewalling" 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)
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