This is the 11574th most frequent Spanish word.
festivos
Holidays or public holidays.
Here, "festivos" is used as an adjective to refer to specific days designated for celebration or rest.
Los días festivos son una oportunidad para descansar.
Holidays are an opportunity to rest.
In this case, "festivo" describes the joyful and celebratory state associated with a holiday event.
En el ambiente festivo de la navidad, todo el mundo estaba alegre.
In the festive atmosphere of Christmas, everyone was joyous.
Here, "festivas" qualifies "lights," indicating that they are specifically associated with celebrations or festivals.