English Reference

Word

incapacity

Phoneticsin·ca·pac·i·ty, stress on the third syllable

US/ˌɪnkəˈpæsəti/

UK/ɪnkəpˈæsɪti/

Countable & uncountable FormalLaw

Definition

n. the state of being unable to do something because of a physical or mental problem. It can also mean a lack of legal power to make a decision.

n. the state of being physically or mentally unable to perform a specific task; also refers to the legal inability to act or make decisions. Often used in medical, legal, or administrative contexts.

Examples

“The court ruled that the defendant was in a state of legal incapacity at the time of the contract, rendering the agreement void and unenforceable.”

Examples

complex

“The court ruled that the defendant was in a state of legal incapacity at the time of the contract, rendering the agreement void and unenforceable.”

Real-World Examples

“He was prescribed a long-acting injectable antipsychotic medication but after two months, Osman successfully challenged his incapacity to make treatment decisions, and by December 2017, stopped taking medication.”
Toronto Sun 30 Sept 2026
“It expresses the incapacity to accept the diversity of others, especially when their life choices diverge from our own," he said.”
USCCB 31 Jan 2024
“In incapacity benefits, versus the comparison countries, Britain appears to have a low bar for access; a less rigorous application and assessment process; and much weaker work incentives.”
The Guardian 16 Sept 2026

Etymology

From in- (“negative”) + capacity.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domain

Law

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.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL 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: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Occasional
Level
C1 · Advanced
Updated

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English Reference