empyreal /em-pi-rēˈəl/ or (Milton, Pope) /em-pirˈi-əl/

1. Formed of pure fire or light
2. Of or relating to the highest and purest region of heaven
3. Sublime

empyreˈan adjective

Empyreal

1. The highest heaven, where the pure element of fire was supposed to subsist
2. The heavens

• stiffie
• stiffies
• stiffing
• stiffish
• stiffly
• stiff neck
• stiff-necked
• stiff-neckedness
• stiff necks
• stiffness
• stiffnesses
• stiffs
• stiffware
• stiffwares
• stiff with
• stiffy
• stifle
• stifle bone
• stifle bones
• stifled
• stifle-joint
• stifle-joints
• stifler
• stiflers
• stifles