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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

Synonym Usage

See active.

Other Word Forms

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”; see 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.

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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.

See Examples For:

The Microsoft mogul rode into the NBA in 2014 as an energetic savior, paying a then-spectacular $2 billion for a sidekick franchise with a dumpy rep and a toxic owner.

From The Wall Street Journal Sep. 3, 2026

They then bombarded the gas mixture with protons to imitate the stream of energetic particles generated by solar superflares.

From Science Daily Sep. 2, 2026

The actress, who hails from Allentown, Pa., also looked back on her childhood, admitting that she was “relentlessly loud and energetic and needed constant attention” when she was younger.

From MarketWatch Sep. 2, 2026

This can vary from high moods, for example, feeling very happy, excited or energetic, to low moods, such as feeling sad, tired or hopeless.

From BBC Aug. 18, 2026

Tuve and Van de GraafF struggled to make it work with the vacuum tubes and other apparatus necessary to produce a focused beam of charged, energetic particles.

From "Big Science" by Michael Hiltzik

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