highspirited
Highspirited is an adjective used to describe a person, animal, or performance characterized by liveliness, energy, and enthusiasm. The term often conveys a sense of cheerful boldness and readiness to take part in activity; it can apply to children, pets, athletes, or other agents who approach situations with vigor. In standard writing, the preferred spelling is high-spirited or high spirited; the closed form highspirited is uncommon and generally regarded as nonstandard or a typographical variant.
Etymology: The word combines high, in the sense of intense or exuberant, with spirited, derived from spirit.
Usage and nuance: High-spirited can carry positive connotations of energy and courage, but may also imply impulsiveness
Related terms: synonyms include ebullient, lively, energetic, exuberant, vivacious; antonyms include lethargic, languid, calm. See also