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1. Feeling weak, as though to faint (lose consciousness caused by insufficient blood to the brain)
    
2. The property of being without strength
   "the faintness or potency of the feeling"
    
3. Barely audible
    
4. The trait of lacking boldness and courage
   "faintness of heart and infirmity of purpose";
   - faintheartedness
    
5. The quality of being dim or lacking contrast
   - dimness

Type of: blurriness, feeling, fogginess, fuzziness, indistinctness, softness, timidity, timorousness, weakness

Antonym: stoutheartedness

Encyclopedia: Faintness