IPA: /ˈnʌmbɪst/
KK: /nʌmbɪst/
The most unable to feel or respond; lacking physical sensation or emotional awareness.
After sitting in the cold for too long, my fingers felt the numbest they had ever been.
Comparative: numb
Superlative: numbest
Numbest → It is formed from "numb" (from Old English *numen*, meaning to be unable to feel) and the superlative suffix "-est" (meaning most). The word "numbest" means having the least sensation or feeling, or being the most unable to feel.
Think of being the "most unable to feel" — that's what "numbest" means, as it describes the highest degree of numbness.