1. Marked by stubborn resistance to authority
   - recalcitrant 
2. Stubbornly resistant to authority or control
   - fractious, refractory, recalcitrant

See also: defiant, disobedient, noncompliant

• protrusile
• protrusion
• protrusive
• protuberance
• protuberant
• protuberate
• Protura
• proturan
• protégé
• protégée
• proud
• proud flesh
• proud of
• Proudhon
• proudly
• Proust
• Proustian
• proustite
• Prov.
• provability
• provable
• provably
• prove
• prove oneself
• proved