English Reference

Word

cloudy

US/ˈkɫaʊdi/

UK/klˈaʊdi/

Definitions

01weather

A2 · Elementary

adj. when the sky is full of clouds and you cannot see the sun clearly.

adj. characterised by a sky covered with clouds; having little or no sunshine.

“It was a cloudy morning, so we decided to bring our umbrellas just in case.”

“The forecast predicts a cloudy afternoon with intermittent drizzle, which may impact the visibility for the outdoor photography session.”

Antonyms

02not clear

B1 · Intermediate

adj. describing a liquid or glass that you cannot see through clearly.

adj. lacking transparency or clarity; containing sediment or particles that make a substance opaque.

“The water in the fish tank looked cloudy and needed to be changed.”

“The chemist noted that the solution became cloudy upon the addition of the reagent, indicating the formation of a precipitate.”

Synonyms

03uncertain

B2 · Upper Intermediate

adj. not clear in meaning or difficult to understand.

adj. metaphorically unclear, confused, or lacking in definition.

“His memory of the accident was a bit cloudy because it happened so fast.”

“The legal implications of the new contract remain cloudy, as several clauses appear to contradict existing employment regulations.”

Antonyms

04computing

B2 · Upper Intermediate Computing Informal

adj. relating to services or data stored on the internet instead of a local computer.

adj. pertaining to cloud computing environments or services hosted on remote servers.

“Our company is moving toward a more cloudy setup to save money on servers.”

“The startup's infrastructure is entirely cloudy, allowing them to scale their operations rapidly without investing in physical hardware.”

Usage

Often used as a casual shorthand for 'cloud-based'.

Teaching tip

This is a relatively modern, informal usage; in professional technical writing, 'cloud-based' or 'cloud-native' is preferred.

Synonyms

cloud-based

Antonyms

localon-premise

Etymology

From Middle English cloudy (“cloudy, overcast, gloomy, dark", also "hilly, rocky”), from Old English clūdiġ (“stony, rocky”), equivalent to cloud + -y.

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

Word family

ADJECTIVE

cloudy(A2)

Domain

Computing

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.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL 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: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
Frequency
Frequent
Level
A2 · Elementary
Updated

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English Reference