1. An unscheduled or unauthorized absence from work, school, or a required location that does not follow proper procedures or notification protocols
The employee's irregular absence without notification resulted in disciplinary action.
A ausência irregular do funcionário sem notificação resultou em ação disciplinar.
2. In legal or administrative contexts, an absence that violates established rules or requirements
The student's irregular absences exceeded the acceptable limit set by the institution.
As ausências irregulares do aluno excederam o limite aceitável estabelecido pela instituição.