unsoreness
/ˌʌnsɔːrˈnɛs/ or /ʌnˈsoʊrnəs/Definitions
1. noun
A state of being not sore or a lack of soreness, often referring to a reduction in discomfort or pain after an injury or physical exertion.
“After a few days of rest, the athlete experienced a noticeable decrease in unsoreness, allowing her to return to training.”