Irritability

имя существительное 1) раздражительность Синоним(ы): petulance, shortness of temper 2) чувствительность; раздражимость; возбудимость

Большой англо-русский словарь

Irritability

noun (plural -ties) 1. the property of protoplasm and of living organisms that permits them to react to stimuli 2. the quality or state of being irritable: as a. quick excitability to annoyance, impatience, or anger; petulance b. abnormal or excessive excitability of an organ or part of the body

Merriam-Webster's Collegiate Dictionary