1. A disrespectful, rude, or impertinent manner of behavior or demeanor
Her insolent attitude towards her teacher was completely unacceptable.
Sua atitude insolente para com a professora foi completamente inaceitável.
2. Arrogant or contemptuous conduct that shows a lack of respect
The employee's insolent attitude got him fired from his job.
A atitude insolente do funcionário o fez perder o emprego.