Related Clues:

• Unemotional person
• Circle meas.
• Unflappable
• 'Cool, man!'
• Dict. info
• Follower of Zeno
• ''Far out!''
• "Awesome!" '80s style
• Phone button letters
• ''Way cool!''
• ''Neato!''
• 'Way cool!'
• 'Way out!'
• OED entry
• Far out