sinewy

1 ENTRIES FOUND:
sinewy /ˈsɪnjəwi/ adjective
sinewy
/ˈsɪnjəwi/
adjective
Britannica Dictionary definition of SINEWY
[more sinewy; most sinewy]
1 
: having strong and lean muscles — sometimes used figuratively
2 
: tough and difficult to cut or chew