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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

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

Explanation

To constrain is to hold back, restrain, or confine. If you've ever had to constrain a toddler in the middle of a temper tantrum, you know you have to watch out for flailing limbs. The verb constrain comes from the Latin word constringere, which means to bind together or tie tightly. Constrain can imply both literal and figurative bindings. You can constrain someone by physically holding on to something like a person's shirt. Or, you can figuratively constrain someone by putting up obstacles. Your teenagers, for example, may feel constrained by your rules and accuse you of sucking the fun out of their social lives.

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Vocabulary lists containing constrain

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.

But it warned that "if instability in the Middle East persists, rising costs, delays and limited transport capacity are likely to constrain humanitarian operations further."

From BBC • May 2, 2026

The concentrated hard-disk drive market allows Western Digital and Seagate to constrain supply, raise prices, and secure long-term contracts.

From Barron's • Apr. 27, 2026

Hiring has slowed over the past few years, but so has growth in the number of people available for work in the U.S., a balance that has helped constrain layoffs and joblessness.

From The Wall Street Journal • Apr. 16, 2026

Getting crosswise with public opinion is sometimes enough to constrain a president.

From Slate • Apr. 8, 2026

For the Arguments to induce belief, though of sufficient certainty, yet do not so constrain the mind to give its assent, but there is prudence and choice in it.

From "The Invention of Science" by David Wootton

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