Related Clues:

• 'Holy moley!'
• ''Awesome!''
• "Incredible!"
• Fill with wonder
• Impress greatly
• Leave open-mouthed, e.g.
• "Impressive!"
• ''I'm amazed!''
• "Holy guacamole!"
• ''Holy smoke!''
• ''That's impressive!''
• ''Unbelievable!''
• "I'm amazed!"
• Leave dumbfounded
• 'Yowza!'