1. Not appropriate for or subject to arbitration

Antonym: arbitrable

• hot press
• hot sauce
• hot seat
• hot spell
• hot spring
• Hot Springs
• Hot Springs National Park
• hot stock
• hot stuff
• hot stuffed tomato
• hot toddy
• hot tub
• hot under the collar
• hot up
• hot war
• hot water
• hot water plant
• hot weather
• hot-air balloon
• hot-blooded
• hot-button issue
• hot-fudge sauce
• hot-rock penstemon
• hot-rod
• hot-tempered