irritation
n. C / Un. a feeling of being slightly angry or annoyed. It can also mean a painful or red feeling on your skin.
n. a state of annoyance or slight anger; also refers to a condition of inflammation or soreness in a body part.
He could not hide his irritation with the slow service.
The constant noise from the construction site next door was a source of great irritation to the office workers.
While the initial rash was minor, the patient reported that the irritation worsened significantly after exposure to the harsh chemicals used in the laboratory.
Borrowed from Middle French irritation, from Latin irrītātiō, from irrītāre (“to excite”).
Uncountable when referring to the general emotion or physical state; countable when referring to a specific source of annoyance.