brawniest

adjective
  1. 1

    Characterized by brawn; muscular, thewy; strong.

    โ€œRattler was a big, brawny fellow, and he stepped up in front of me, rolling up his sleeves.โ€

  2. 2

    Calloused; hardened.

Source: https://en.wiktionary.org/wiki/brawniest, https://en.wiktionary.org/wiki/brawny