English Reference

Word

constrained

Phoneticscon·strained, stress on the second syllable

US/kənˈstɹeɪnd/

UK/kənstɹˈeɪnd/

Definitions

01restricted or limited

B2 · Upper Intermediate Academic

adj. limited or restricted by rules, space, or lack of money.

adj. kept within close bounds or restricted by external circumstances such as budget, space, or regulations.

“The research team was constrained by a very small budget this year.”

“The architect's design was severely constrained by the narrow plot of land and strict local building codes.”

Usage

Often followed by the preposition 'by'.

Antonyms

02forced or unnatural

C1 · Advanced Formal

adj. not natural or free, often because you are forced to act a certain way.

adj. appearing forced, stiff, or unnatural due to external pressure or internal discomfort.

“He gave a constrained smile when his rival won the award.”

“The atmosphere during the negotiations remained constrained, with both parties choosing their words with extreme caution.”

Usage

Frequently describes facial expressions, gestures, or social atmospheres.

Synonyms

Real-World Examples

“Only 29% of the HOAs limited outdoor-light wattage, 19% required residents to maintain trees, 6% constrained use of fertilizers and 3% required native plants.”
The Conversation 3 Aug 2026
“In this crowded environment, each chain is constrained by the others around it.”
Phys.org 21 Aug 2026

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference