1. Not growing old; not appearing to age
   - ageless, unaging

Encyclopedia: Unageing

• Frigid Zone
• frigidity
• frigidly
• frigidness
• frigorific
• frijol
• frijole
• frijoles refritos
• frijolillo
• frijolito
• frill
• frilled
• frilled lizard
• frilly
• Frimaire
• fringe
• fringe benefit
• fringe bush
• fringe cups
• fringe tree
• fringe-toed lizard
• fringed
• fringed gecko
• fringed gentian
• fringed grass of Parnassus