English Reference

Word

consistency

Phoneticscon·sis·ten·cy, stress on the second syllable

US/kənˈsɪstənsi/

UK/kənsˈɪstənsi/

Definitions

01uniformity of behaviour

B2 · Upper Intermediate Uncountable noun

n. the quality of always acting or happening in the same way over time.

n. the quality of achieving a level of performance or behaving in a way that does not vary over time.

“The team's consistency was the main reason they won the championship this year.”

“The manager praised the staff for their consistency in maintaining high service standards even during the busiest weeks of the tourist season.”

Synonyms

Antonyms

inconsistencyunreliability

02thickness of a substance

B2 · Upper Intermediate Countable noun

n. how thick, smooth, or firm a liquid or mixture is.

n. the degree of firmness, density, or viscosity of a liquid or semi-solid substance.

“Add a little more milk until the sauce has a smooth consistency.”

“The chef explained that the batter must reach a thick, ribbon-like consistency before it is ready to be folded into the egg whites.”

03logical agreement

C1 · Advanced Uncountable noun Science Academic

n. the state of having different parts or ideas that agree with each other.

n. the condition of being internally coherent or compatible; the absence of contradictions within a system or argument.

“The lawyer looked for consistency between the witness's new story and her old one.”

“The research paper was criticised because the data lacked consistency with the theoretical framework established in the opening chapters.”

04logical non-contradiction

C2 · Proficiency Uncountable noun Mathematics Technical · Academic

n. a state where a set of rules or ideas does not contain any parts that prove each other wrong.

n. the property of a formal system or set of axioms where no two propositions derived from them are mutually contradictory.

“The professor proved the consistency of the new mathematical model.”

“In formal logic, the consistency of a set of axioms is fundamental, as a single contradiction can render the entire system unsound.”

Synonyms

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “consistency” in context.

Verb

01. ensure consistency

“The editor reviewed the entire manuscript to ensure consistency in the formatting of citations.”

verb + noun

02. show consistency

“To reach an elite level in sports, an athlete must show consistency in their daily training habits.”

verb + noun

Adjective

03. internal consistency

“The legal team checked the witness's statement for internal consistency to make sure the facts aligned.”

adj + noun

04. logical consistency

“The philosopher's argument was praised for its logical consistency and lack of contradictions.”

adj + noun

Real-World Examples

“Society hasn’t reached general agreement or consistency in how to define human biological sex.”
The Conversation 17 Aug 2026
“However, he said the consistency of the changes across a large population warrants attention.”
ScienceDaily 15 Aug 2026

Etymology

By surface analysis, consistent + -cy, consistence + -y or consist + -ency.

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

Word family

NOUN

consistency(C1)

Domain

Logic

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
Frequent
Level
C1 · AdvancedOxford
Updated

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English Reference