an obvious refusal to obey

disobedience, disregard

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

nerve, boldness

bile; a bitter feeling; impudence

nerve, brashness

a fibre or bundle of fibres carrying messages concerning feeling and movement between the brain and all parts of the body; condition of being easily excited, worried, irritated

daring, boldness

the state of being disobedient

defiance