irritable
adj. B2 Upper Intermediate US //ˈɪɹətəbəɫ// UK //ˈɪɹɪtəbəl// ir·ri·ta·ble
adj. becoming annoyed or angry very easily. You might feel this way when you are tired or stressed.
adj. having or showing a tendency to be easily annoyed or made angry. Often used to describe a temporary mood or a permanent personality trait.
He becomes very irritable when he does not get enough sleep.
The long flight and lack of food made the passengers irritable and impatient with the staff.
Chronic pain can make a patient increasingly irritable, leading to strained relationships with caregivers who may not understand the underlying physical cause of the mood shifts.
Borrowed from French irritable, from Latin irritabilis.
Usage
Commonly follows linking verbs like 'become', 'feel', or 'seem'.