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What is another word for deficient?

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Contexts ▼

Significantly below an amount or level that is adequate

Insufficient or inadequate

Not having all the necessary or appropriate parts

Low in quality or below expectations

Not having or showing the necessary skills to do something successfully

Pertaining to or resembling someone very stupid

Having no use, purpose or reason

Out of practice in a skill or subject

Not conclusive, not leading to a conclusion

Having distinct limits or boundaries

Incapable of, or indisposed to, quick and effective action

Extremely poor and lacking the means to provide for oneself

Deficient in something needed or usual

(of a fabric) Made of light material

… more ▼

Adjective

Significantly below an amount or level that is adequate

leaving much to be desired

not cut out for

not up to scratch

in short supply

few and far between

thin on the ground

hard to come by

not functioning

not to be had for love nor money

non-functioning

too little too late

barely sufficient

seldom met with

inconsequential

out of the ordinary

coming up short

with an insufficiency

out of the common

thinly distributed

in the minority

with too little …

with too few …

in poor condition

bottom-of-barrel

unprovided with

in a state of disrepair

not up to snuff

scarcer than hen's teeth

not good enough

not up to standard

not up to expectations

nowhere to be found

not to be found

more ❯

“A diet deficient in vitamins.”

Adjective

Insufficient or inadequate

with an insufficiency of

inconsequential

too little too late

more ❯

“Similarly, she has not observed or complained about any deficient workmanship in the insulation and drywall and she believes that none exists with respect to her residence.”

Adjective

Not having all the necessary or appropriate parts

disorganized^US

disorganised^UK

lacking in detail

thrown together

partially finished

partially complete

rough and ready

under construction

awaiting completion

by fits and starts

little by little

cobbled together

on the back of an envelope

more ❯

Adjective

Low in quality or below expectations

dissatisfactory

not up to snuff

bargain-basement

a load of pants

not up to scratch

leaving much to be desired

good-for-nothing

less-than-stellar

cheap and nasty

not up to standard

no great shakes

strictly for the birds

not good enough

twopenny-halfpenny

end-of-the-pier

insufficiently powered

not strong enough

not all it's cracked up to be

not quite the done thing

of poor quality

beyond the pale

leaving a lot to be desired

thrown together

down-at-the-heels

unsportsmanlike

knocked together

unprepossessing

of little value

of no financial value

unsophisticated

ill-constructed

of negligible value

would fetch nothing

of little worth

nickel-and-dime

dishonourable^UK

dishonorable^US

of little financial value

putting on the ritz

more ❯

Adjective

Not having or showing the necessary skills to do something successfully

lacking ability

not good enough

leaving much to be desired

not up to scratch

not up to snuff

not cut out for

unable to do something for toffee

no great shakes

inappropriate to

not designed for

out of character

disproportionate

not know one's arse from one's elbow

unequal to the task

out of your depth

more ❯

Adjective

Pertaining to or resembling someone very stupid

slow on the uptake

mentally deficient

not intelligent

thick as two short planks

mentally handicapped

as thick as two short planks

not the full shilling

soft in the head

dead from the neck up

feather-brained

uncomprehending

without thought

unsophisticated

wet behind the ears

as daft as a brush

foolishly stupid

unknowledgeable

devoid of intelligence

lacking knowledge

a brick short of a load

as green as grass

two sandwiches short of a picnic

one-dimensional

more ❯

Adjective

Having no use, purpose or reason

inconsequential

nickel-and-dime

counterproductive

not worth a hill of beans

good-for-nothing

without rhyme or reason

without success

not worth the candle

disadvantageous

of no earthly use

save one's breath

lacking foundation

in vicious circle

spinning one's wheels

wild goose chase

no good to gundy

without grounds

without foundation

not good enough

dishonourable^UK

dishonorable^US

procrastinating

lacking ability

disorganized^US

disorganised^UK

non-functioning

chicken-hearted

hemming and hawing

hard to swallow

hard to believe

chicken-livered

more ❯

Adjective

Out of practice in a skill or subject

out of practice

not what it was

not as good as it used to be

Adjective

Not conclusive, not leading to a conclusion

proving nothing

resolving nothing

leaving matters open

not yet established

still open to doubt

still open to question

open to question

in a state of uncertainty

in a state of limbo

betwixt and between

settling nothing

in no man's land

yet to be decided

subject to debate

a controversial subject

a matter of opinion

bone of contention

on the back burner

between rock and hard place

up for discussion

between sixes and sevens

open to discussion

open to argument

under examination

hanging by a thread

under advisement

indistinguishable

difficult to believe

hard to swallow

beyond the bounds of possibility

scarcely credible

on the horns of a dilemma

more ❯

Adjective

Having distinct limits or boundaries

on a tight rein

closely controlled

self-restrained

self-controlled

black-and-white

subject to limitations

clearly defined

more ❯

Adjective

Incapable of, or indisposed to, quick and effective action

badly organized

difficult to understand

full of twists and turns

Adjective

Extremely poor and lacking the means to provide for oneself

poverty-stricken

in reduced circumstances

in straitened circumstances

on the breadline

on one's uppers

strapped for cash

without two farthings to rub together

in Queer Street

without a brass farthing

without a red cent

as poor as a church mouse

without two pennies to rub together

underprivileged

unable to make ends meet

without a penny

without two brass farthings to rub together

unable to keep the wolf from the door

without two pennies farthings to rub together

on one's beam-ends

behind eight ball

without a penny to one's name

on the bread line

on one's beam ends

without a shot in one's locker

poor as a church mouse

of no fixed address

of no fixed abode

in distressed circumstances

down to last cent

financially poor

discriminated against

in dire circumstances

down to last penny

on the wallaby track

in the poorhouse

in financial difficulties

not having two pennies to rub together

not having two farthings to rub together

financially distressed

financially embarrassed

without means of support

in dire straits

in administration

in receivership

in Carey Street

out of business

gone to the wall

in the hands of the receivers

economically deprived

financially disadvantaged

economically disadvantaged

unable to pay one's debts

financially ruined

taken to the cleaners

more ❯

Adjective

Deficient in something needed or usual

lost in thought

in a brown study

in short supply

immersed in thought

deep in thought

inclined to forget

a million miles away

in a world of your own

unaware of events

head in the clouds

with a memory like a sieve

with a mind like a sieve

lacking concentration

not concentrating

off in a world of one's own

looking out window

having a memory like a sieve

asleep on the job

negligent about

like an absent-minded professor

phantasmagorical

driven to distraction

with your head in the clouds

out of this world

disorganized^US

feather-brained

disorganised^UK

discombobulated

at sixes and sevens

not knowing if one is coming or going

with Alzheimer's disease

not thinking clearly

head over heels

eat sleep and breathe

thrown off balance

more ❯

Adjective

(of a fabric) Made of light material

straightforward

more ❯

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Nearby Words

deficient number

deficient numbers

deficit finance

defibrillations

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