nonacceptable
Fails to qualify
Not acceptable; failing to meet required standards or expectations.
The word functions as a more formal or emphatic alternative to unacceptable, though unacceptable is far more common: The committee deemed the proposal nonacceptable.
Often appears in bureaucratic or technical contexts where precise categorization matters.
Not allowed
- prohibitedOfficially not permitted
- bannedOfficially disallowed
- disallowedOfficially not permitted
- inadmissibleNot allowed as evidence
illicit · unlawful · proscribed · barred · outlawed · taboo · off-limits · contraband
Refused or disavowed
- refusedDeclined to accept
- declinedRefused or diminished
- dismissedReleased from duty
- spurnedRejected with contempt
rebuffed · vetoed · nixed · overruled · repudiated · excluded · disallowed · turned down
Of lower rank
- deficientHaving too little
- poorLacking sufficient resources
- mediocreOf only moderate quality
- suboptimalBelow the ideal standard
second-rate · low-grade · shoddy · faulty · defective · flawed · imperfect · inadequate
Not suited for purpose
- inappropriateNot suitable or fitting
- incompatibleUnable to exist together
- incongruousNot fitting together harmoniously
- unqualifiedLacking required credentials
inapt · ill-suited · mismatched · unfitting · out of place · wrong · ineligible · unworkable
Impossible to endure
- inexcusableImpossible to justify
- unjustifiableCannot be reasonably defended
- indefensibleCannot be justified
- unforgivableCannot be pardoned
outrageous · deplorable · egregious · unconscionable · beyond the pale · unpardonable · insupportable · insufferable
forbidden
Not allowed
- prohibitedOfficially not permitted
- bannedOfficially disallowed
- disallowedOfficially not permitted
inadmissible · illicit · unlawful · proscribed · barred · outlawed · taboo · off-limits · contraband · restricted
denied
Refused or disavowed
spurned · rebuffed · vetoed · nixed · overruled · repudiated · excluded · disallowed · turned down · passed over
inferior
Of lower rank
suboptimal · second-rate · low-grade · shoddy · faulty · defective · flawed · imperfect · inadequate · unsatisfactory
unfit
Not suited for purpose
- inappropriateNot suitable or fitting
- incompatibleUnable to exist together
- incongruousNot fitting together harmoniously
unqualified · inapt · ill-suited · mismatched · unfitting · out of place · wrong · ineligible · unworkable · impractical
unbearable
Impossible to endure
- inexcusableImpossible to justify
- unjustifiableCannot be reasonably defended
- indefensibleCannot be justified
unforgivable · outrageous · deplorable · egregious · unconscionable · beyond the pale · unpardonable · insupportable · insufferable · reprehensible
offensive
Causing displeasure or attack-oriented
- improperLacking in propriety
- indecentOffensive to accepted standards
- unseemlyInappropriate for the occasion
vulgar · tasteless · obscene · lewd · crude · disrespectful · shameful · scandalous · taboo · risque
nonacceptableacceptable
Meeting minimum standards
accepted · satisfactory · approved · passable · adequate
accept, acceptance, acceptable, unacceptable, unaccepted, acceptability, acceptor, nonacceptance, acceptation