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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

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.

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

A few rise above head-height, the most energetic sentinels of regeneration.

From Los Angeles Times • Mar. 13, 2026

Those humble beginnings have created a character who is passionate, energetic and provides effort, desire and commitment - all of which were evident in that stunning display against City.

From BBC • Mar. 11, 2026

At a busy health centre in Shanghai, Yan Sulian, an energetic 65-year-old volunteer, helped older patients with electronic registration.

From Barron's • Mar. 3, 2026

John Fairbanks was an energetic, associate editor at Scientific American.

From "American Spirits" by Barb Rosenstock