Synonyms of incompleteness

1 Syllable
lack, dearth, flaw
2 Syllables
failing, blemish, drawback, shortfall, weakness
3 Syllables
unfitness, deficit, inaptness, skimpiness, babyishness, paucity, shortcoming, meagerness, scantiness, faultiness, poverty
4 Syllables
underage, imperfection, puerility, infantilism, deficiency, defalcation, imperfections
5 Syllables
inefficacy, unsuitableness, inadequacy, inadequacies, ineptitude, inexperience, incompetence, inefficiency, incompetency, ineffectualness, incapacity, insufficiency, defectiveness
6 Syllables
inadequateness, ineffectiveness