Irritability Easily annoyed Quick-temper Irritable mood Irritable Grumpy Dysphoric agitation 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. Irritability Short fuse Easily upset Frustration intolerance Increased emotional sensitivity UMLS:C2700617 Easily bothered On edge 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). Increased emotional instability Short tempered Cranky Emotional overactivity Heightened reactivity state Exasperation Hot-temper Behavioral irritation state Dysregulated negative emotional state