Related Clues:

• Bizarre
• Radical
• Unconventional
• 'Groovy!'
• Rad
• 'Cool, man!'
• "Groovy!"
• Hippie's phrase
• Avant-garde
• It was rad in the Sixties
• 'Wild!'
• "Like, wow!"
• 'Groovy, man!'
• 'Wild, man!'
• Distant, or slangily unconventional