What's the singular form of dilettanteism? Here's the word you're looking for.
Answer
The noun dilettanteism can be countable or uncountable.
The singular form of dilettanteism is also dilettanteism.
Examples
Our sense of duty must often wait for some work which shall take the place of dilettanteism and make us feel that the quality of our action is not a matter of indifference.