noun briskness; activity; effervescence, as of liquors.
2. liveliness ·noun an appearance of life, animation, or spirit; as, the liveliness of the eye or the countenance in a portrait.
3. liveliness ·noun the quality or state of being lively or animated; sprightliness; vivacity; animation; spirit; as, the liveliness of youth, contrasted with the gravity of age.