Sin"ew*y (?), a. 1. Pertaining to, consisting of, or resembling, a sinew or sinews.

The sinewy thread my brain lets fall.

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.

Sin"ew*y (?), a. 1. Pertaining to, consisting of, or resembling, a sinew or sinews.

The sinewy thread my brain lets fall.

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.

• Tough; having strong sinews.
  
• (figuratively) Having or showing nervous strength.