This is the 12109th most frequent Spanish word.
insultar
To offend or disrespect someone with words or actions.
In this sentence, 'insultar' is used in its general form to refer to the act of verbally offending or disrespecting someone.
No debes insultar a las personas.
You should not insult people.
Here, 'insultado' is the past participle of 'insultar,' used to express someone's feeling of being disrespected or injured by a remark.
Se sintió insultado por el comentario.
He felt insulted by the comment.
In this case, 'insultar' is used as an infinitive to describe the action of offending in the context of providing reasoning or advice.