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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 men are “all taken with her, the energetic glimmer in her blue eyes, her feisty determination, her international charm,” Mr. Makos writes.

From The Wall Street Journal ● Oct. 30, 2026

In this case, the researchers are interested in ultraviolet photons energetic enough to ionize hydrogen, making them essential to understanding how the early universe became transparent.

From Science Daily ● Oct. 30, 2026

"He's a young, energetic former president" who is still "very loved and trusted, certainly among Democrats, but even more broadly," Julian Zelizer, professor of history and public affairs at Princeton University, told AFP.

From Barron's ● Oct. 29, 2026

His prose is energetic, occasionally overexuberant — and, above all, a paean to Capra’s enduring importance.

From Los Angeles Times ● Oct. 27, 2026

Rajesh had once been the most promising of the brothers—the nimblest, the supplest, the most charismatic, the most energetic, the most beloved and idolized by my father and his family.

From "The Gene" by Siddhartha Mukherjee

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