English Reference

Word

loopy

US/ˈɫupi/

UK/lˈuːpi/

Definition

adj. a little crazy or silly in a funny way. You use it when someone acts strange, often because they are tired, happy, or joking around.

adj. describing someone mildly eccentric, silly, or mentally unfocused, often from tiredness, amusement, or intoxication. Often suggests temporary odd behaviour rather than serious mental illness.

Examples

“You sound a bit loopy after no sleep.”

“After the long night shift, the nurses get loopy and laugh at small jokes.”

“Sleep deprivation made his thinking loopy, so his normally careful plan came out as a wild mix of good ideas and nonsense.”

Examples

simple

“You sound a bit loopy after no sleep.”

contextual

“After the long night shift, the nurses get loopy and laugh at small jokes.”

complex

“Sleep deprivation made his thinking loopy, so his normally careful plan came out as a wild mix of good ideas and nonsense.”

Usage

Typically used predicatively after 'be', 'get', or 'sound' rather than before a noun.

Etymology

From loop + -y.

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

Word family

ADJECTIVE

loopy(B2)

Related words

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
Occasional
Level
B2 · Upper Intermediate
Updated

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English Reference