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Synonyms

constrain

American  
[kuhn-streyn] / kənˈstreɪn /

verb (used with object)

  1. to force, compel, or oblige.

    He was constrained to admit the offense.

    Synonyms:
    coerce
  2. to confine forcibly, as by bonds.

    Synonyms:
    bind, check
    Antonyms:
    free
  3. to repress or restrain.

    Cold weather constrained the plant's growth.


constrain British  
/ kənˈstreɪn /

verb

  1. to compel or force, esp by persuasion, circumstances, etc; oblige

  2. to restrain by or as if by force; confine

"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

  • constrainable adjective
  • constrainer noun
  • constrainingly adverb
  • nonconstraining adjective
  • unconstrainable adjective
  • unconstraining adjective

Etymology

Origin of constrain

1275–1325; Middle English constrei ( g ) nen < Anglo-French, Middle French constrei ( g ) n- (stem of constreindre ) < Latin constringere. See con-, strain 1

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.

The recent attacks in the Persian Gulf could further constrain supplies of industrial metals.

From The Wall Street Journal • Apr. 2, 2026

The First Amendment and decades of precedent constrain executive agencies.

From Salon • Mar. 17, 2026

Presidents have a freer hand to craft policy on the global stage, with lawmakers and courts less empowered to constrain them.

From Slate • Mar. 10, 2026

"A prolonged disruption... would begin to erode inventories, constrain logistics and tighten global oil and gas balances, with much greater effects on prices."

From Barron's • Mar. 3, 2026

Few rules constrain the exercise of prosecutorial discretion.

From "The New Jim Crow" by Michelle Alexander