Synonyms for irritable

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irritable implies quick excitability to annoyance or anger, usually resulting from emotional tension, restlessness, physical indisposition, etc.; irascible and choleric are applied to persons who are hot-tempered and can be roused to a fit of anger at the slightest irritation; splenetic suggests a peevish moroseness in one quick to vent his malice or spite; touchy applies to one who is acutely irritable or sensitive and is too easily offended; cranky and cross suggest moods in which one cannot be easily pleased or satisfied, cranky because of stubborn notions or whims, and cross because of ill humor