1. Quickly aroused to anger
   - choleric, irascible, hotheaded, hot-tempered, short-tempered

See also: ill-natured

• heartiness
• heartland
• heartleaf
• heartleaf arnica
• heartleaf manzanita
• heartless
• heartlessly
• heartlessness
• heartrending
• heartrot
• hearts
• heartsease
• heartseed
• heartsick
• heartsickness
• heartstrings
• heartthrob
• heartwarming
• heartwood
• hearty
• heat
• heat barrier
• heat capacity
• heat content
• heat death