This is the 12211th most frequent Spanish word.
irritabilidad
Irritability; the quality of being easily annoyed or angered.
Irritabilidad refers to Juan's state of being easily annoyed or angered due to stress in this context.
La irritabilidad de Juan se debe al estrés extremo en el trabajo.
Juan's irritability is due to extreme stress at work.
Irritabilidad here is used to describe a general state or symptom that can indicate an underlying medical issue.
La irritabilidad puede ser síntoma de algún problema médico.
Irritability can be a symptom of a medical condition.
In this sentence, irritabilidad indicates a temporary state that improved with rest.