has part has part characteristic of inheres in has modifier Irritability Easily annoyed Quick temper Consider the context of the individual experience; the state of being irritable implies a change from a recognized baseline. Irritability as a trait implies an enduring feature (years) of the individual. Synonyms that could be descriptive of either positive or negative emotions (e.g. emotional overactivity) should be at a higher level in the hierarchy (e.g. Abnormal affect). Irritable UMLS:C2700617 Easily bothered An emotional state characterized by negative feelings of heightened frustration, annoyance, or feeling upset, often triggered by internal factors (e.g., fatigue, hunger, unfulfilled desires) or external factors (e.g., social or environmental challenges). Irritability may be unpredictable, and is accompanied by a lowered threshold for emotional reactivity and observable features (speech, facial expressions, or psychomotor activity). Grumpy Short tempered Cranky Irritability HP:0000737 Hot-temper Short fuse Easily upset Dysregulated negative emotional state irritability behavior abnormal process quality