Protervity is a less common word that means defiance, stubbornness, or a tendency towards wilful disobedience. Synonyms for this word include impudence, insolence, audacity, and temerity. These words all describe a level of disrespect or disregard for authority, and are often used to describe behaviour that is considered rude or inappropriate. Other synonyms for protervity include rebellion, defiance, obstinacy, and recalcitrance. Each of these words suggests a refusal to comply with the expectations or norms of others, often in a way that is considered challenging or confrontational. Regardless of which synonym is used, protervity is a word that suggests a lack of respect for authority or tradition.