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muscular

American  
[muhs-kyuh-ler] / ˈmʌs kjə lər /

adjective

  1. of or relating to muscle or the muscles.

    muscular strain.

  2. dependent on or affected by the muscles.

    muscular strength.

  3. having well-developed muscles; brawny.

    Synonyms:
    sturdy, stalwart, powerful, strong, sinewy
  4. vigorously and forcefully expressed, executed, performed, etc., as if by the use of a great deal of muscular power.

    a muscular response to terrorism.

  5. broad and energetic, especially with the implication that subtlety and grace are lacking.

    a muscular style.

  6. reflected in physical activity and work.

    a muscular religion.

  7. Informal. having or showing power; powerful.

    a muscular vehicle.


muscular British  
/ ˈmʌskjʊlə, ˌmʌskjʊˈlærɪtɪ /

adjective

  1. having well-developed muscles; brawny

  2. of, relating to, or consisting of muscle

"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

Other Word Forms

Etymology

Origin of muscular

1675–85; < Latin mūscul ( us ) muscle + -ar 1

Explanation

If you're strong and athletic, with powerfully developed muscles, you can describe yourself as muscular. Weight lifters are muscular, and so is the Incredible Hulk. If your grandmother has worked as a cattle farmer her entire life, she is probably pretty muscular too. Anyone with strong muscles can be described as muscular. In the 1600's, the word simply meant "pertaining to muscles," but by the mid-1700's, muscular specifically referred to well-developed muscles. The root word is the Latin musculus, which, oddly enough, means both "muscle" and "little mouse."

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Vocabulary lists containing muscular

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:

Compared with brachiopods, bivalves have greater energy demands because of their larger bodies and muscular "foot" that allows them to burrow and crawl.

From Science Daily Jul. 12, 2026

To achieve a similar impact, Johnson appears to be wearing a muscular silicone suit over his 6-foot-5 frame, but the extra padding just makes his head look puny.

From Los Angeles Times Jul. 9, 2026

But teaching assistant Fiona thinks there is now also a stigma around other "muscular" dogs - including Staffordshire bull terriers.

From BBC Jul. 1, 2026

His muscular tone, rhythmic attack and roaming improvisational style set him apart and inspired several generations of tenor saxophonists, including John Coltrane, Joe Henderson and Branford Marsalis.

From The Wall Street Journal May 26, 2026

Grandpa was on Dancer, a muscular bay quarter horse stallion.

From "In the Footsteps of Crazy Horse" by Joseph Marshall III

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