SINEWY
Meaning of SINEWY in English
sin ‧ ew ‧ y /ˈsɪnjuːi/ BrE AmE adjective
a sinewy person has a thin body and strong muscles:
a big man with long, sinewy arms
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012