faint / fānt/ • adj. 1. (of a sight, smell, or sound) barely perceptible: the faint murmur of voices. ∎ (of a hope, chance, or possibility) slight; remote: there is a faint chance that the enemy may flee.2. weak and dizzy; close to losing consciousness: the heat made him feel faint. ∎ appearing feeble or lacking in strength: the faint beat of a butterfly's wing.• v. [intr.] lose consciousness for a short time because of a temporarily insufficient supply of oxygen to the brain.• n. [in sing.] a sudden loss of consciousness: she hit the floor in a dead faint.PHRASES: not have the faintest inf. have no idea: I haven't the faintest what it means.DERIVATIVES: faint·ly adv. faint·ness n.