insubordination
[noun]
Synonyms: disobedience, defiance, indiscipline, insurrection, mutiny, rebellion, recalcitrance, revolt

[TahlilGaran] English Synonym Dictionary ▲

in‧sub‧or‧di‧na·tion /ˌɪnsəbɔːdəˈneɪʃən, ˌɪnsəbɔːdɪˈneɪʃən $ -ˌbɔːrdnˈeɪ-/ noun [uncountable] formal
when someone refuses to obey a person who has more authority than them Synonym : disobedience:
Howell was fired for gross insubordination.
—insubordinate /ˌɪnsəˈbɔːdənət, ˌɪnsəˈbɔːdɪnət $ -ɔːr-/ adjective

[TahlilGaran] Dictionary of Contemporary English ▲