If "wrenching" means causing pain or distress:
* Soothing
* Comforting
* Calming
* Reassuring
* Uplifting
If "wrenching" means forcefully twisting or turning:
* Easing
* Loosening
* Releasing
* Straightening
* Gentle
If "wrenching" means deeply affecting:
* Unmoving
* Indifferent
* Unaffected
* Neutral
* Bland
If "wrenching" means causing a separation or loss:
* Uniting
* Reuniting
* Joining
* Connecting
* Strengthening
To find the most suitable antonym, consider the specific context in which "wrenching" is used.