1 Hot or burning; causing a sensation of burning; fiery; as, ardent spirits, that is, distilled liquors; an ardent fever.
2 Having the appearance or quality of fire; fierce; glowing; shining; as, ardent eyes. Dryden.
3 Warm, applied to the passions and affections; passionate; fervent; zealous; vehement; as, ardent love, feelings, zeal, hope, temper. An ardent and impetuous race. Macaulay.