5
unsuitableness(noun, bother, agree, slip, condition)
4
bad condition(noun, expression, idiom)
4
improperness(noun, agree, slip, condition, usual)
4
inaptness(defect, deficiency, impropriety, inadequacy, shortage)
4
incongruity(noun, slip, rudeness, impropriety, tastelessness)
4
infelicity
4
softness
3
debility(noun, infirmity, frailty, incapacity)
3
delinquency(noun, inexpedience)
3
disadvantage(noun, upset, trouble, bother, disturbance)
3
inapplicability(disagreement, impropriety, unsuitability, inaptness)
3
inappositeness(impropriety, unsuitability, inaptness)
3
incompetency(noun, weakness, lack, failing, defect)
3
insufficiency(noun, weakness, skill, failure, lack)
3
unbecomingness(noun, agree, slip, condition, usual)
2
awkwardness(noun, bother, disturbance, hindrance, exclusion)
2
disablement
2
frailness
2
frailty(noun, weakness, skill, failure, shortcoming)
2
helplessness(noun, weakness, hopelessness, inability, subjection)
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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>