1. Positioned so as to be ready for confrontation or danger
   "he stood to attention with his shoulders braced"
    
2. Held up by braces or buttresses
   "He was required to take out the corners and rebuild them, providing for braced walls";
   - buttressed

1. Support or hold steady and make steadfast, with or as if with a brace
   "brace your elbows while working on the potter's wheel";
   - steady, stabilize, stabilise [Brit]
    
2. Support by bracing
   "They braced the wall before beginning the renovation"
    
3. Prepare (oneself), often but not necessarily for something unpleasant or difficult
   "He braced himself for the bad news";
   - poise
    
4. Cause to be alert and energetic
   "Coffee and tea brace me";
   - stimulate, arouse, energize, energise [Brit], perk up, stir

See also: prepared, supported

Type of: affect, beef up [informal], fix, fortify, gear up, hold, hold up, prepare, ready, set, set up, strengthen, support, sustain

Antonym: de-energize

Encyclopedia: Brace, Mike