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Synonyms for inefficient
adj not working well; wastefulAntonyms for inefficient
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.
More words related to inefficient
feeble
adjective. not strong; ineffective
- aged
- ailing
- chicken
- debilitated
- decrepit
- delicate
- doddering
- dopey
- effete
- emasculated
- enervated
- enfeebled
- etiolated
- exhausted
- failing
- faint
- flabby
- flat
- fragile
- frail
- gentle
- helpless
- impotent
- inadequate
- incompetent
- indecisive
- ineffectual
- inefficient
- infirm
- insubstantial
- insufficient
- lame
- languid
- low
- out of gas
- paltry
- poor
- powerless
- puny
- sapless
- sickly
- slight
- strengthless
- tame
- thin
- unconvincing
- vitiated
- weak
- weakened
- weakly
- wimpy
- woozy
- zero
helpless
adjective. incapable, incompetent; vulnerable
incompetent
adjective. unskillful, unable
- amateur
- amateurish
- awkward
- bungling
- bush-league
- clumsy
- disqualified
- floundering
- helpless
- inadequate
- incapable
- ineffectual
- inefficient
- ineligible
- inept
- inexperienced
- inexpert
- insufficient
- maladroit
- not cut out for
- not equal to
- not have it
- out to lunch
- raw
- unadapted
- unequipped
- unfit
- unfitted
- unhandy
- uninitiated
- unproficient
- unqualified
- unskilled
- untrained
- useless
ineffective
adjective. useless
- abortive
- anticlimactic
- barren
- bootless
- defeasible
- emasculate
- feckless
- feeble
- forceless
- fruitless
- futile
- idle
- impotent
- inadequate
- incompetent
- indecisive
- ineffectual
- inefficacious
- inefficient
- inept
- inferior
- innocuous
- inoperative
- lame
- limited
- neutralized
- no go
- no way
- not effective
- nugatory
- null
- paltry
- powerless
- slack-spined
- spineless
- unable
- unavailable
- unavailing
- unfruitful
- unproductive
- unprofitable
- unsuccessful
- vain
- void
- withered
- worthless
ineffective/ineffectual
adjective. weak, useless
- abortive
- anticlimactic
- barren
- bootless
- defeasible
- feckless
- feeble
- forceless
- fruitless
- futile
- idle
- impotent
- inadequate
- incompetent
- indecisive
- inefficacious
- inefficient
- inept
- inferior
- innocuous
- inoperative
- invertebrate
- lame
- limited
- neutralized
- nugatory
- null
- null and void
- paltry
- powerless
- spineless
- unable
- unavailing
- unfruitful
- unproductive
- unprofitable
- unsuccessful
- vain
- void
- withered
- worthless
inefficacious
adjective. ineffectual
- abortive
- anticlimactic
- barren
- bootless
- defeasible
- feckless
- feeble
- forceless
- fruitless
- futile
- idle
- impotent
- inadequate
- incompetent
- indecisive
- ineffective
- inefficient
- inept
- inferior
- innocuous
- inoperative
- invertebrate
- lame
- limited
- neutralized
- nugatory
- null
- null and void
- paltry
- powerless
- spineless
- unable
- unavailing
- unfruitful
- unproductive
- unprofitable
- unsuccessful
- useless
- vain
- void
- withered
- worthless
inept
adjective. clumsy, unskilled; incompetent
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.