adj.
  - (of a sight, smell, or sound) barely perceptible. ▸(of a hope, chance, or idea) slight. 
- close to losing consciousness.
v.
 briefly lose consciousness because of a temporarily insufficient supply of oxygen to the brain.
n.
 a sudden loss of consciousness.
Derivative
  
    - faintly adv.
- faintness n.
 
  Etymology
  ME: from OFr. faint, feint, past part. of faindre, feindre (see feign).