- fibrous, sinewy, stringy, unchewable - (of meat) full of sinews; especially impossible to chew
Antonym: tender (indirect, via tough)
- tendinous, sinewy - consisting of tendons or resembling a tendon
- brawny, hefty, muscular, powerful, sinewy - (of a person) possessing physical strength and weight; rugged and powerful; "a hefty athlete"; "a muscular boxer"; "powerful arms"
Antonym: weak (indirect, via strong)