different between overpowering vs stunning

English

overpowering

overpowering (comparative more overpowering, superlative most overpowering)

From Middle English stunnyng, stunnynge, stounyng, equivalent to stun +? -ing.

stunning (comparative more stunning, superlative most stunning)

Having an effect that stuns.
The stunning jolt from the taser gun made the criminal stop fleeing.
(informal) Exceptionally beautiful or attractive.
That woman is stunning!
(informal) Amazing; wonderfully good.
The film was stunning.

stunning

From Middle English stunnyng, stonyng (also stoniynge, stonyynge), equivalent to stun +? -ing.

stunning (plural stunnings)

The act by which a person or animal is physically stunned.
- 2009, Kevin J. Anderson, The Ashes of Worlds
  He wished he had tens of thousands more troops under Andez's control so he could round up every one of these demonstrators. But it was futile to continue cracking down. The stunnings, beatings and arrests had only inflamed them further.

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