2
impairment(noun, disadvantage, restriction, infirmity, frailty)
2
inadequateness(defect, deficiency, imperfection, inadequacy, shortage)
2
incapableness
2
incapacitation(noun, weakness, skill, failure, shortcoming)
2
incompatibility(inappropriateness, inaptness, unbecomingness)
2
incorrectness(noun, slip, rudeness, impropriety, tastelessness)
2
indecorousness(noun, impropriety, tastelessness, inappropriateness, unsuitability)
2
indecorum(noun, slip, rudeness, impropriety, tastelessness)
2
ineffectiveness(noun, weakness, skill, failure, lack)
2
ineffectuality(noun, weakness, hopelessness, inability, helplessness)
2
inexpediency
2
inutility(noun, weakness, skill, failure, shortcoming)
2
irrelevancy
2
powerlessness(noun, weakness, skill, failure, shortcoming)
2
untimeliness(noun, bother, disturbance, hindrance, impropriety)
2
uselessness(noun, weakness, hopelessness, inability, helplessness)
1
abnormality
1
ad lib
1
aggravation(bother, disturbance, hindrance, untimeliness, troublesomeness)
1
annoyance(bother, disturbance, hindrance, untimeliness, troublesomeness)
11 years ago|4.2k views|share |citing 
APASmart Define. (2015). unfitness thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unfitness/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfitness thesaurus" https://smartdefine.org/unfitness/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unfitness thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unfitness/thesaurus/synonyms>.
MLASmart Define. "unfitness thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unfitness/thesaurus/synonyms>