Sinewy

Part of speech: adjective (a.)

1. Pertaining to, consisting of, or resembling, a sinew or sinews. The sinewy thread my brain lets fall. Donne.

2. Well braced with, or as if with, sinews; nervous; vigorous; strong; firm; tough; as, the sinewy Ajax. A man whose words . . . were so close and sinewy. Hare.