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Definitions

loopy

[loo-pee] / ˈlu pi /
ADJECTIVE
foolish
Synonyms
STRONGEST
absurd crazy insane kooky ludicrous nutty ridiculous silly wacky witless zany
WEAK
asinine brainless cockamamy daffy daft dippy doltish dotty fantastic fatuous feebleminded half-baked half-witted harebrained idiotic ill-advised ill-considered imbecilic imprudent incautious indiscreet injudicious irrational jerky loony lunatic mad moronic nonsensical preposterous senseless short-sighted simple softheaded stupid tomfool unearthly unintelligent unreasonable unwise weak
Antonyms
STRONGEST
balanced logical rational reasonable sane sensible serious wise

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

During his intros, Ding offers a loopy little wave to the camera that looks like he’s still getting the hang of it.

From The Wall Street Journal • Apr. 21, 2026

"On Tuesday morning he was still here and when I let the chickens out he just went loopy," Farmer Tom said.

From BBC • Apr. 17, 2026

And Enver Chakartash’s costumes are a riot of splashy patterns and extravagant colors, with Damis’s beribonned ensemble and lavender, fur-trimmed boots adding a note of loopy sartorial humor.

From The Wall Street Journal • Dec. 17, 2025

“Here we have a hero working with his former enemies and there’s a completely loopy, nutty spin, making something for both kids and their parents.”

From Los Angeles Times • Mar. 4, 2025

Her letters were nothing like Abbie’s loopy, pretty writing.

From "Orphan Island" by Laurel Snyder

Vocabulary lists containing loopy

"Saying Farewell to a Faithful Pal"

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