Definition of irascible:

characterized by anger

Synonyms of irascible:

choleric, irritable, testy, petulant, cross, touchy, short-tempered, cantankerous, peevish, choleric

Opposite/Antonyms of irascible:

pleasant, easygoing, patient, happy, good-tempered, friendly, cheerful, placid, genial

Sentence/Example of irascible:

The irascible judge is known for not allowing much to hold back his biting observations.