noun
defiance of authority; refusal to obey orders
adjective
insubordinate (related to insubordination)
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The employee was reprimanded for his insubordination towards his supervisor.
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She got in trouble for being insubordinate and not following the rules.
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He was being a total rebel and showing insubordination towards authority.
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Her insubordination towards tradition was seen as a bold move in the industry.