Insubordination

ˌɪnsəˌbɔ:dɪˈneɪʃn/

noun
defiance of authority; refusal to obey orders.
"he was dismissed for insubordination"
synonyms:disobedience, unruliness, waywardness, indiscipline, bad behaviour, misbehaviour, misconduct, delinquency, troublemaking;