(of meat) full of sinews; especially impossible to chew
Fibrous
Sinewy
Unchewable
Tough
Forming viscous or glutinous threads
Ropey
Ropy
Thready
Thick
Lean and sinewy
Wiry
Thin
Lean
Consisting of or containing string or strings
Unsubstantial
Unreal
Insubstantial