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Synonyms

energetic

American  
[en-er-jet-ik] / ˌɛn ərˈdʒɛt ɪk /
Sometimes energetical

adjective

  1. possessing or exhibiting energy, especially in abundance; vigorous.

    an energetic leader.

  2. powerful in action or effect; effective.

    to take energetic measures against crime.

    Synonyms:
    potent, strong, effectual

energetic British  
/ ˌɛnəˈdʒɛtɪk /

adjective

  1. having or showing much energy or force; vigorous

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See active.

Other Word Forms

  • energetically adverb
  • hyperenergetic adjective
  • nonenergetic adjective
  • nonenergetically adverb
  • quasi-energetic adjective
  • quasi-energetically adverb
  • superenergetic adjective
  • superenergetically adverb
  • ultraenergetic adjective
  • unenergetic adjective
  • unenergetically adverb

Etymology

Origin of energetic

First recorded in 1645–55; from Greek energētikós, from energē- (from en- en- 2 + ergē-, variant stem of ergeîn “to be active”; energy ) + -tikos -tic

Explanation

Energetic describes someone who has lots of get-up-and-go. When you decide to jog alongside the bus instead of taking it to work, you are energetic — so energetic that it tires the rest of the commuters out just watching you. Energetic comes from the Greek, energetikos, meaning “active.” When you are energetic, you're active with enthusiasm and excitement to spare. Energetic describes those little kids you babysit, who never sit still and force you to play hide and seek. Energetic can also mean a powerful focused effort, where you work hard to achieve something. The energetic bond between the men was formed after months of training together in the military.

Keep Reading on Vocabulary.com

Vocabulary lists containing energetic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mr. Magyar won the election with a disciplined and energetic campaign.

From The Wall Street Journal • Apr. 14, 2026

Sonza performed Saturday on the Gobi Stage -- which year after year hosts indie and alternative acts -- in front of a crowd that danced and sang along in an intimate yet energetic atmosphere.

From Barron's • Apr. 13, 2026

With a voice that moved effortlessly from romantic ballads to energetic numbers, she became the go-to singer for composers across genres.

From BBC • Apr. 12, 2026

This suggests that electrical activity driven by dust, lightning, or energetic particles may play a broader role in shaping planetary environments.

From Science Daily • Apr. 5, 2026

“Alive!” it cries in a hoarse but energetic voice.

From "Invisible Inkling" by Emily Jenkins