foolish

Mane (Îngilîzî)

1. (usually) Lacking good sense or judgement; unwise.
2. Resembling or characteristic of a fool.

Hevwate

stupid

silly

idiotic

dull

absurd

ignorant

crazy

senseless

dumb

unwise

nonsensical

mad

fool

addled

witless

clumsy

ridiculous

inane

slow-witted

unreasonable

insane

dim-witted

daft

fatuous

idiot

brainless

obtuse

nonsense

imbecile

careless

simple

imprudent

unintelligent

goosy

anserine

goofy

rash

irresponsible

barmy

balmy

dense

goosey

pointless

gormless

half-witted

sappy

dizzy

💫

dopey

dopy

uneducated

inept

gooselike

blunt

ludicrous

meaningless

mindless

daffy

frivolous

cockeyed

dump

trifling

become stupid

insensate

apish

thoughtless

thick

subnormal

dim

jerky

nutty

doltish

light-headed

feebleminded

nitwitted

feeble-minded

spoony

slow

awkward

folly

fond

sheepish

headless

preposterous

moron

moronic

giddy

blank

useless

vacant

vacuous

wacky

harebrained

unnecessary

wild

unlearned

unlucky

unskillful

unwitting

weak-headed

weak-minded

airheaded

become mad

brain dead

cockamamy

devoid of intelligence

goofball

meshuggener

slap-happy

softheaded

soft in the head

thick-skulled

person who is stupid

beef-witted

fat-witted

soft-witted

addiction

nuts

feather-brained

dull-headed

not educated

fatuitous

without intellect

Laputan

gaumless

nudnick

calvish

idle-headed

timber-headed

intellectually dull

unreasonable irrational

addle brained

aberrant

wifty

abnormal

absent-minded

airhead

asinine

ass

🍑

be

blithering

blockish

brute

changeling

childish

cloddish

cockamamie

coquettish

cracked

crass

craving

cuckoo

deaf

delirious

deluded

delusive

deviant

dimwit

dolt

dozy

drippy

easy

eccentric

enigmatic

flighty

fool around

foolhardy

freak

freakish

funny

😄

gaga

goon

goose

🪿

guileless

half-baked

heedless

idiocy

idle

ill-advised

ill-considered

ill-judged

imbecilic

incipient

incomprehensible

inconceivable

infatuated

injudicious

irrational

irrelevant

lacking

laughable

loony

lunatic

maniac

mentally deficient

mentally retarded

meshuga

meshugga

muddle-headed

mute

🔇

naive

negligible

nudnik

oafish

obscure

obstinate

patsy

pervers

puzzling

rattlebrained

reasonless

reckless

retarded

sap

scatterbrained

scoundrel

simper

simple-minded

simpleton

soft

soft-headed

sottish

stupidity

sucker

torpid

turkey

unintelligible

Werger

dumm

albern

stupide

tonto

töricht

bête

sot

idiot

dom

necio

Wekî (IPA) tê bilêvkirin

/ˈfuː.lɪʃ/

Etîmolojî (Îngilîzî)

Ji Middle English mîras hatiye girtin: folisch

In summary

From Middle English folisch; equivalent to fool + -ish.