Related Clues:

• 'Totally cool!'
• Hard to move
• Alphabetic trio
• Indifferent
• Unfeeling
• Unaffected by passion
• Lexicographer's concern: Abbr.
• Rad
• Totally awesome
• Cool, to the Fresh Prince
• “Far out, man”
• Showing no emotion
• Way cool
• ''Far out!'' to a physicist?
• Good, in the hood