energetic

adjective en·er·get·ic \ˌe-nər-ˈje-tik\

: having or showing a lot of energy

: involving a lot of effort

Full Definition of ENERGETIC

: operating with or marked by vigor or effect

: marked by energy : strenuous <an energetic walk>

: of or relating to energy

— en·er·get·i·cal·ly \-ti-k(ə-)lē\ adverb

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Origin of ENERGETIC

Greek energētikos, from energein to be active, from energos

First Known Use: 1651

Related to ENERGETIC

Synonyms: dynamic, vigorous, flush, gingery, lusty, peppy, red-blooded, robust, vital

Antonyms: dull, lethargic, listless, sluggish, torpid

Synonym Discussion of ENERGETIC

vigorous, energetic, strenuous, lusty, nervous mean having or showing great vitality and force. vigorous further implies showing no signs of depletion or diminishing of freshness or robustness <as vigorous as a youth half his age>. energetic suggests a capacity for intense activity <an energetic campaigner>. strenuous suggests a preference for coping with the arduous or the challenging <the strenuous life on an oil rig>. lusty implies exuberant energy and capacity for enjoyment <a lusty appetite for life>. nervous suggests especially the forcibleness and sustained effectiveness resulting from mental vigor <full of nervous energy>.