
1) Amazes 2) Astonishes 3) Astounds 4) Blows away 5) Bowls over or blows away 6) Cold-cocks 7) Dazes 8) Dazes or dazzles 9) Dazzles 10) Delivers shocking news to 11) Dumbfounds 12) Dumfounds 13) Flabbergasts 14) Floors 15) Gives a shock 16) Gives an electric jolt 17) Hits like a ton of bricks 18) Knocks dizzy
Found on
https://www.crosswordclues.com/clue/stuns

1) Amazes 2) Awes 3) Bowls over 4) Dazes 5) Fazes 6) Floors 7) Knocksforaloop 8) Zaps
Found on
https://www.crosswordclues.com/clue/stuns
No exact match found.