Related Clues:

• Sandbag
• Blow out of the water
• Astound
• Phaser setting, on 'Star Trek'
• Knock over
• Daze
• Render speechless
• Leave open-mouthed
• Sci-fi setting
• Benumb
• Take by surprise
• Dumbfound
• Leave dumbstruck
• Leave agape
• 'Star Trek' weapon setting