1. conduct or actions that are inappropriate, improper, or not fitting for a particular situation, context, or social setting
His unsuitable behavior at the formal dinner embarrassed the entire family.
Seu comportamento inadequado no jantar formal envergonhou toda a família.
2. actions that violate social norms, professional standards, or expected etiquette
The teacher reported the student's unsuitable behavior to the principal.
A professora relatou o comportamento inadequado do aluno ao diretor.