Synonyms of incapability

2 Syllables
weakness
3 Syllables
helplessness, ineptness, feebleness
4 Syllables
uselessness, powerlessness, infirmity, impotence
5 Syllables
inefficacy, inadequacy, inefficiencies, incompetency, inefficiency, inaptitude, ineffectualness, inutility, incapacity, inability
6 Syllables
ineffectiveness, incapacitation