EN

Synonyms for loon

13 synonyms
2 meanings

noun

Most common

psycho lunatic wacko nutbag bird brain nut case dunce dullard

Synonyms by meaning

Noun

1. Lunatic — A crazy or deranged person; a lunatic

lunatic, wacko, psycho, fool, nutbag, weirdo

2. Addlehead

bird brain, addlehead informal

Other

diver UK IE, dullard, dunce, nut case, bulb-out

Definitions

n. 1
A crazy or deranged person; a lunatic.
n. 2
A boy, a lad.

Related words

Word family: loons looney
Phrases: common loon great northern loon red-throated loon loon pants yellow-billed loon black-throated loon pepper-shinned loon

Forms

Plural: loons → lunatics, wackos, psychos, fools…

Example sentences

psycho Ziri studied Rima's social media like a psycho.
lunatic Gunter was yelling at the cops like a lunatic to help him.
wacko When I say Yanni is a wacko, that's what I mean.

Popularity over time

Word	1850 → 2019	Trend
loon		rising
psycho		steady
lunatic		rising
wacko		rising

Use in printed books, per decade from 1850 to 2019.

By length

4 letters: fool¹
5 letters: diver², dunce, wacko²
6 letters: psycho², weirdo², nutbag
7 letters: lunatic³, dullard
9 letters: addlehead

The small number after each word is its number of syllables (diver² = 2 syllables).

In other languages

Français: plongeon
Español: chapuzón
Deutsch: Kopfsprung
Català: capbussó