English Reference

Word

wacky

US/ˈwæki/

UK/wˈæki/

Definition

adj. funny or strange in a way that is not serious. You use this to describe things that are silly and unusual.

adj. characterised by eccentric, silly, or irrational behaviour or appearance. Often used to describe creative ideas or unconventional personalities in a lighthearted manner.

Examples

“He has some wacky ideas for the party.”

“The children loved the performer's wacky costume, which featured oversized shoes and a hat made of balloons.”

“While the director's earlier films were grounded in realism, his latest project takes a wacky turn into surrealism, featuring talking animals and gravity-defying sets.”

Examples

simple

“He has some wacky ideas for the party.”

contextual

“The children loved the performer's wacky costume, which featured oversized shoes and a hat made of balloons.”

complex

“While the director's earlier films were grounded in realism, his latest project takes a wacky turn into surrealism, featuring talking animals and gravity-defying sets.”

Usage

Often used predicatively after linking verbs like 'seem' or 'look'.

Real-World Examples

“He says he is probably still under non-disclosure agreements so won’t go into detail; “but I’ve seen some wacky ideas out there, some strange ones”.”
The Guardian · 22 Sept 2026

Etymology

From whack (“someone who whacked his head onto something often, hence being weird”) + -y.

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

Domain

Geology

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

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English Reference