to talk about a decision what is to happen a meaning etc and express a different opinion

verbally fight

an obvious refusal to obey

disobedience, disregard

(an instance of) rude behaviour without showing any fear, shame etc

nerve, boldness

the state of being impudent

audacity

a response to earlier action or activity; opposition to progress or change; (an instance of) a change in one substance caused by another

response

the state of being disobedient

defiance

an act of replying; what is replied; answer

answer

an answer (the usual word); reaction

answer, reaction