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What is another word for severely mentally ill?

Need synonyms for severely mentally ill? Here's a list of similar words from our thesaurus that you can use instead.

Adjective

Crazy or suffering from psychosis

psychopathological

not quite right in the head

not the full shilling

off one's gourd

around the bend

as daft as a brush

away with the fairies

manic-depressive

not right upstairs

nutty as a fruitcake

off your rocker

of unsound mind

round the twist

foaming at the mouth

mad as a hatter

mentally deranged

with a screw loose

mad as a March hare

non compos mentis

not right in the head

off your trolley

stark raving mad

stark staring mad

as mad as a hatter

out of one's mind

off the deep end

out of one's tree

out of one's gourd

sick in the head

deprived of one's wits

having a screw loose

one card shy of a full deck

a few cards shy of a full deck

one sandwich short of a picnic

crazy as a loon

a few sandwiches short of a picnic

as mad as a March hare

having kangaroos in the top paddock

not of sound mind

in another world

have bats in the belfry

have kangaroos in the top paddock

have a screw loose

out of one's head

not in your right mind

daft as a brush

touched in the head

out of one's skull

few X short of a Y

out of one's box

severely mentally disordered

two sandwiches short of a picnic

mentally unbalanced

out of your mind

soft in the head

through the roof

from doolally tap

not knowing what to do with oneself

out of one's wit

beside yourself

hot under the collar

at the end of your tether

in a cold sweat

hot and bothered

more ❯

“So, Michael and his severely mentally ill clients might be seen at the local driving range hitting a bucket of balls or participating in a wiffleball tournament.”

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severely mentally ill
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Nearby Words

severely misconstrued

severely mistaken

severely reprimand

severely reprimanded

severely reprimanding

severely reprimands

severely mentally disordered

severely critical

severe inflation

severe existence

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