pushback
noun /ˈpʊʃbæk/
  /ˈpʊʃbæk/
[uncountable] (especially North American English)- the act of opposing or resisting a plan, an idea or a change
- The plan was abandoned because the pushback from the military was so strong.
 - The Republican pushback was furious.
 - We got some pushback on the price increases.