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What is another word for mad as a March hare?

Need synonyms for mad as a March hare? Here's a list of similar words from our thesaurus that you can use instead.

Adjective

(predicative only) Having an unstable state of mind

as daft as a brush

away with the fairies

non compos mentis

nutty as a fruitcake

off your rocker

off your trolley

one sandwich short of a picnic

out of one's head

round the twist

stark raving mad

stark staring mad

with a screw loose

around the bend

have bats in the belfry

mad as a hatter

nutty as fruitcake

of unsound mind

out of one's mind

out of one's tree

a bit lacking upstairs

not the full shilling

not right in the head

not quite right in the head

not right upstairs

foaming at the mouth

sick in the head

have kangaroos in the top paddock

have a screw loose

off one's gourd

psychopathological

daft as a brush

severely mentally ill

touched in the head

out of one's gourd

manic-depressive

not in your right mind

mentally deranged

not of sound mind

one card shy of a full deck

a few cards shy of a full deck

a few sandwiches short of a picnic

deprived of one's wits

having a screw loose

having kangaroos in the top paddock

out of one's skull

out of one's box

two sandwiches short of a picnic

mentally unbalanced

soft in the head

as mad as a hatter

off the deep end

as mad as a March hare

in another world

crazy as a loon

severely mentally disordered

slow on the uptake

out of your mind

through the roof

not quite right

thick as two short planks

more ❯

“The hare has been a traditional symbol of fertility and reproduction in some cultures, and its courtship behaviour in the spring inspired the English idiom mad as a March hare.”

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See Also

What is the opposite of mad as a March hare?
Words that rhyme with mad as a March hare
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Nearby Words

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