deficient
The word “deficient” has 3 syllables: de-fi-cient
It's pronounced as /dɪˈfɪʃənt/
What is synonym and antonym for deficient?
In the thesaurus, “deficient” has 131 synonyms and 127 antonyms.
Here are synonyms and antonyms for deficient along with examples of usage in sentences.
Synonyms for deficient
- abominable
- abysmal
- atrocious
- awful
- bad
- bare
- bastard
- below par
- broken
- brutal
- bum
- bush
- bush-league
- cheesy
- coarse
- common
- counterfeit
- crappy
- crumby
- crummy
- cut-rate
- damaged
- damnable
- defective
- deplorable
- detestable
- disastrous
- dissatisfactory
- dreadful
- egregious
- execrable
- fake
- faulty
- flagrant
- flawed
- fragmental
- fragmentary
- from hunger
- gnarly
- gross
- half
- halfway
- hand-to-mouth
- horrendous
- horrible
- ill
- impaired
- imperfect
- inadequate
- incomplete
- inferior
- injured
- insufficient
- junky
- lacking
- lame
- lean
- lesser
- light
- lousy
- low
- low-grade
- low-rent
- marred
- meager
- meagre
- mean
- mediocre
- mere
- minimum
- miscreant
- miserable
- miserly
- odious
- off
- paltry
- partial
- pathetic
- phoney
- phony
- poor
- punk
- reprehensible
- rotten
- rubbishy
- scant
- scanty
- scarce
- scurrilous
- second-rate
- shabby
- sham
- shoddy
- short
- shy
- sketchy
- skimp
- skimpy
- sleazy
- slender
- slight
- slim
- small
- sour
- spare
- sparse
- spoiled
- stingy
- stinky
- suboptimal
- subpar
- substandard
- sucky
- terrible
- trashy
- unacceptable
- unassembled
- uncompleted
- under par
- unfinished
- unsatisfactory
- unspeakable
- useless
- valueless
- vile
- villainous
- wack
- wanting
- worthless
- wretched
- wrong
Antonyms for deficient
- a1
- abounding
- abundant
- acceptable
- adequate
- all right
- ample
- average
- bang-up
- banner
- better
- big
- borderline
- boss
- bounteous
- bountiful
- capital
- choice
- classic
- classical
- complete
- completed
- considerable
- copious
- crackerjack
- dandy
- decent
- divine
- enlarged
- enough
- entire
- excellent
- exceptional
- expanded
- fabulous
- fair
- fancy
- fine
- finished
- first-class
- first-rate
- flawless
- full
- generous
- grand
- gratifying
- great
- groovy
- heavenly
- hefty
- high-grade
- high-test
- intact
- integral
- jim-dandy
- jumbo
- keen
- king-size
- king-sized
- large
- largish
- lavish
- liberal
- luxuriant
- marvellous
- marvelous
- mean
- mediocre
- middling
- minimal
- neat
- nifty
- noble
- ok
- okay
- overflowing
- oversize
- oversized
- par excellence
- passable
- perfect
- plenitudinous
- plenteous
- plentiful
- premium
- prime
- respectable
- rich
- satisfactory
- satisfying
- sensational
- sizable
- sizeable
- slick
- so-so
- special
- splendid
- standard
- stellar
- sterling
- substantial
- sufficient
- suitable
- super
- superb
- superior
- superlative
- supernal
- supplemented
- swell
- teeming
- terrific
- tip-top
- tolerable
- top
- top-notch
- unbroken
- undamaged
- unexceptional
- unimpaired
- uninjured
- unmarred
- unsurpassed
- useful
- whole
- wonderful
- worthy
Meanings of deficient
- adjective
- Lacking something essential; often construed with in.
- Insufficient or inadequate in amount.
- Of a number n, Having the sum of divisors σ(n)<2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n).
Example Sentences
- The diet was deficient in essential nutrients.
- His argument was deficient in logic and evidence.
- A deficient cooling system caused the machine to overheat.
- The software is deficient when it comes to security features.
- She was found to be deficient in calcium during the check-up.
On this page you'll find 258 synonyms, antonyms, or another words to deficient, such as: a1, abominable, abounding, abundant, abysmal, acceptable, adequate.
Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.
Related Words
dabbling
- amateurish
- amusing
- antic
- artsy fartsy
- bare
- cavorting
- coltish
- coy
- crude
- cut short
- dallying
- dawdling
- defective
- deficient
- delay
- delaying
- delightful
- delighting
- devilish
- dilettante
- dilly-dallying
- disporting
- diverting
- elfish
- energetic
- enjoyable
- entertaining
- faulty
- fay
- formless
- found wanting
- fragmentary
- frisking
- frisky
- frittering
- frivoling
- frivolous
- frolic
- frolicking
- frolicsome
- fun
- gamboling
- gambolling
- gay
- goldbricking
- goofy
- green
- half-baked
- half-cocked
- half-done
- hanging
- hanging about
- happy
- idling
- immature
- imperfect
- impish
- in the making
- in the rough
- incomplete
- jesting
- jocose
- jocular
- jocund
- joking
- kittenish
- knavish
- lacking
- larky
- lighthearted
- lively
- loafing
- loitering
- merry
- messing around
- mischievous
- natural
- not done
- pixie
- pixy
- plain
- playful
- playing
- pleasant
- pleasing
- pleasurable
- poking
- prankish
- procrastinating
- procrastination
- puttering
- rascally
- raw
- recreating
- relaxing
- resting
- roguish
- rollicking
- romping
- rookie
- rough
- roughhewn
- screwing around
- shapeless
- silly
- sketchy
- skylarking
- spirited
- sportful
- sporting
- sportive
- sprightly
- spunky
- teasing
- tenderfoot
- tentative
- toying
- trifling
- unaccomplished
- unadorned
- unassembled
- uncompleted
- unconcluded
- under construction
- undeveloped
- undone
- unexecuted
- unfashioned
- unfulfilled
- ungifted
- unperfected
- unpolished
- unrefined
- unskilled
- vivacious
- wanting
- whimsical
damaged
- abused
- afflicted
- aggrieved
- annihilated
- banged up
- bashed
- battered
- beat-up
- bent
- blemished
- blew out
- blighted
- bloodied
- botched
- broke
- broken
- bruised
- busted
- clobbered
- compromised
- contused
- crabbed
- creased
- crippled
- crushed
- cut
- dashed
- decimated
- defaced
- deficient
- demolished
- dented
- desolated
- destroyed
- deteriorated
- devastated
- did in
- dinged
- dinted
- disabled
- disfigured
- down
- endamaged
- enervated
- enfeebled
- eroded
- flawed
- flubbed
- fouled-up
- fragmental
- fragmentary
- gashed
- glitched
- gone
- gored
- grazed
- half
- halfway
- hamstrung
- harmed
- hurt
- impaired
- imperfect
- in need of repair
- in poor condition
- in smithereens
- incomplete
- injured
- kaput
- lacerated
- laid up
- lamed
- loused up
- maimed
- maltreated
- mangled
- marred
- messed-up
- mucked up
- mutilated
- nicked
- no-go
- on the blink
- on the fritz
- out of action
- out of kilter
- out of whack
- partial
- pulverized
- queered
- razed
- ruined
- run-down
- scalded
- scarred
- scathed
- scoured
- scourged
- scraped
- screwed-up
- shattered
- shot
- sketchy
- smashed
- snafued
- spoiled
- spoilt
- strained
- sunk
- tarnished
- tore
- tore down
- tormented
- tortured
- totaled
- totalled
- unassembled
- uncompleted
- undermined
- unfinished
- unsound
- vitiated
- washed out
- wasted
- weakened
- wiped out
- wounded
- wrecked
lacking
- absent
- asking
- bare
- bearing
- begging
- challenging
- claiming
- coming up short
- commanding
- dead
- defective
- deficient
- defunct
- demanding
- departed
- deprived of
- done
- enjoining
- entailing
- exacting
- expired
- extinct
- finished
- flawed
- hand-to-mouth
- impaired
- inadequate
- incomplete
- insisting
- insufficient
- involving
- lapsed
- lean
- light
- lost
- low
- meager
- meagre
- mere
- minimum
- minus
- missing
- necessitating
- needed
- needing
- niggardly
- nonexistent
- not hacking it
- not making it
- obsolete
- over
- perished
- poor
- pressing
- questing
- rare
- requiring
- sans
- scant
- scanty
- scarce
- short
- shy
- skimp
- skimpy
- slender
- slight
- slim
- small
- spare
- sparse
- stingy
- stipulating
- substandard
- taking
- unacceptable
- uncommon
- unsatisfactory
- vanished
- wanting
- warranting
- without
vain
- abortive
- arrogant
- assumptive
- assured
- bad
- barren
- base
- big-headed
- biggety
- biggity
- bigheaded
- blusterous
- blustery
- boastful
- bombastic
- bootless
- braggart
- bragging
- braggy
- bumptious
- cavalier
- chaffy
- cheap
- cheapjack
- chesty
- cocky
- complacent
- conceited
- condescending
- confident
- consequential
- counterproductive
- defective
- deficient
- delusive
- delusory
- disdainful
- domineering
- dud
- duff
- egocentric
- egoistic
- egoistical
- egotistic
- egotistical
- empty
- fastuous
- flawed
- frivolous
- fruitless
- futile
- going nowhere
- haughty
- hifalutin
- high-and-mighty
- high-handed
- high-hat
- highfalutin
- holier-than-thou
- hollow
- hopeless
- huffy
- idle
- imperfect
- imperious
- important
- impossible
- in vain
- in vicious circle
- inadequate
- ineffective
- ineffectual
- inefficacious
- inferior
- inflated
- insignificant
- insufficient
- junky
- lacking
- lofty
- lordly
- lost
- lousy
- low-grade
- masterful
- meaningless
- misleading
- narcissistic
- no dice
- no-good
- no-win
- not a prayer
- not worth the candle
- nugatory
- null
- of no avail
- on a treadmill
- ostentatious
- otiose
- overconfident
- overweening
- paltry
- patronizing
- peremptory
- petty
- pleased with oneself
- pointless
- pompous
- pontifical
- presuming
- presumptuous
- pretentious
- prideful
- profitless
- proud
- puffed up
- puny
- second-rate
- self-adulatory
- self-affected
- self-applauding
- self-asserting
- self-assertive
- self-assured
- self-centered
- self-conceited
- self-confident
- self-congratulatory
- self-contented
- self-dramatizing
- self-engrossed
- self-glorifying
- self-gratulatory
- self-important
- self-opinionated
- self-promoting
- self-satisfied
- selfish
- senseless
- shuck
- slight
- smug
- snobbish
- snobby
- snooty
- sterile
- stuck-up
- substandard
- supercilious
- superior
- swaggering
- swellheaded
- swollen-headed
- time-wasting
- toploftical
- toplofty
- trifling
- trivial
- unacceptable
- unattainable
- unavailing
- unimportant
- unnotable
- unproductive
- unprofitable
- unsatisfactory
- unsuccessful
- uppish
- uppity
- useless
- vainglorious
- valueless
- void
- wanting
- worthless