faintness

(noun) a feeling of faintness and of being ready to swoon.

(noun) the property of being without strength. Example: "The faintness or potency of the feeling."

(noun) barely audible.

(noun) the trait of lacking boldness and courage. Synonyms: faintheartedness. Example: "Faintness of heart and infirmity of purpose."

(noun) the quality of being dim or lacking contrast. Synonyms: dimness.