infusible /in-fūˈzi-bl/

1. That cannot be fused
2. Having a high melting point

• backfitting
• backfittings
• backflip
• backflips
• back-formation
• back-formations
• back-friend
• back-friends
• backgammon
• backgammoned
• backgammoning
• backgammons
• back-ganging
• back garden
• back gardens
• back green
• back greens
• background
• background heating
• background processing
• background queue
• background radiation
• background radiations
• backgrounds
• background tasks