Synonyms of unskillfulness

2 Syllables
greenness
3 Syllables
awkwardness, boorishness, gawkiness, cloddishness, oafishness, ineptness, coarseness, rudeness, crudeness, artlessness, uncouthness, tactlessness
4 Syllables
gracelessness, maladroitness, ungainliness, inexpertness, ignorance
5 Syllables
ineptitude, amateurishness, uncoordination, incompetence, inability