noun
1. intentionally contemptuous behavior or attitude
• Syn: ↑defiance
• Derivationally related forms: ↑rebellious, ↑defiant (for: ↑defiance)
• Hypernyms: ↑intractability, ↑intractableness
• Hyponyms: ↑insubordination, ↑obstreperousness
2. an insubordinate act
• Syn: ↑insubordination
• Derivationally related forms: ↑rebellious
• Hypernyms: ↑resistance
• Hyponyms: ↑contumacy, ↑disobedience, ↑noncompliance
Useful english dictionary. 2012.