con·strain | \kən-ˈstrān \
constrained; constraining; constrains

Definition of constrain 

transitive verb

1a : to force by imposed stricture, restriction, or limitation Teenagers often feel constrained by rules. an artist constrained by a client's requirements

b : to restrict the motion of (a mechanical body) to a particular mode

2 : compress also : to clasp tightly

3 : to secure by or as if by bonds : confine constrained to a dungeon broadly : limit

4 : to force or produce in an unnatural or strained manner a constrained smile

5 : to hold back by or as if by force " … constraining my mind not to wander from the task."— Charles Dickens

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Other Words from constrain

constrainedly \kən-ˈstrā-nəd-lē, -ˈstrānd-lē \ adverb

Choose the Right Synonym for constrain

force, compel, coerce, constrain, oblige mean to make someone or something yield. force is the general term and implies the overcoming of resistance by the exertion of strength, power, or duress. forced to flee for their lives compel typically suggests overcoming of resistance or unwillingness by an irresistible force. compelled to admit my mistake coerce suggests overcoming resistance or unwillingness by actual or threatened violence or pressure. coerced into signing over the rights constrain suggests the effect of a force or circumstance that limits freedom of action or choice. constrained by conscience oblige implies the constraint of necessity, law, or duty. felt obliged to go

Examples of constrain in a Sentence

constrained by conscience to tell only the truth constrained his anger at the needless interruption

Recent Examples on the Web

Such pockets of slack might constrain wages everywhere now that goods are produced in international supply chains and sold on global markets. The Economist, "The rich world needs higher real wage growth," 30 June 2018 His playing, particularly on the newest songs, is interestingly precise and constrained, with an almost staccato attack at times that seems in contrast to the cosmic diffusion of the music overall. John Adamian,, "From Sam Hunt And Reba To U2 And King X: A Week Of Big-Name Concerts," 23 June 2018 Until then, the five-year-old, thermally constrained, expansion-averse cylinder can be had ... at 2013 prices. Brendan Nystedt, WIRED, "The Best Mac Alternatives," 13 June 2018 France’s first lady Brigitte Macron reveled in her time spent with Melania Trump this week but feels America’s first lady is constrained while living in the White House. Kathleen Joyce, Fox News, "Brigitte Macron says first lady Melania Trump 'cannot do anything'," 28 Apr. 2018 However, like its neighbor to the north, the Mexican city is becoming land constrained and developers are more frequently turning to redeveloping existing structures — without the pressure of lawsuits. Phillip Molnar,, "Building up, instead of tearing down, in Tijuana," 2 July 2018 The rules and realities that constrain Gibb still shock. Susan Faust, San Francisco Chronicle, "Roundup of new children’s books, March 25," 22 Mar. 2018 Almost all bitcoin mining happens in China and is controlled by a few firms (although the government is now trying to constrain the energy-hungry industry). The Economist, "Raiders of the killer dappBlockchain technology may offer a way to re-decentralise the internet," 28 June 2018 But the arm-twisting is meeting resistance in parts of Europe, especially among allies who helped negotiate and sign the disarmament accord and want to sustain it to constrain Iran’s nuclear ambitions. Tracy Wilkinson,, "Trump administration threatens sanctions against countries that import Iranian oil," 26 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'constrain.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of constrain

14th century, in the meaning defined at sense 1a

History and Etymology for constrain

Middle English, from Anglo-French constraindre, from Latin constringere to constrict, constrain, from com- + stringere to draw tight — more at strain

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Phrases Related to constrain

feel constrained

Statistics for constrain

Last Updated

3 Oct 2018

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Time Traveler for constrain

The first known use of constrain was in the 14th century

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More Definitions for constrain



English Language Learners Definition of constrain

: to limit or restrict (something or someone)

: to use pressure to force (someone) to do something


con·strain | \kən-ˈstrān \
constrained; constraining

Kids Definition of constrain

1 : compel sense 1, force He was constrained to retire because of ill health.

2 : to restrict or limit She felt the rules constrained her creativity.

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Comments on constrain

What made you want to look up constrain? Please tell us where you read or heard it (including the quote, if possible).


not any or not one

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