say it: SI-nyoo-ee
sinewy is an adjective meaning "(of meat) full of sinews; especially impossible to chew". It carries 3 recorded senses.
(of meat) full of sinews; especially impossible to chew
consisting of tendons or resembling a tendon
(of a person) possessing physical strength and weight; rugged and powerful
“a hefty athlete”
“a muscular boxer”
“powerful arms”
Definitions, synonyms and semantic relations for sinewy come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.