What does "unpracticalness" mean?

The state or condition of being unpractical; impracticality.

What is a synonym for "unpracticalness"?

Common synonyms include: autism, dereism, flight of fancy, ideal, idealism, idealization.

noun

noun ·Rare ·Advanced level

Noun

1
The state or condition of being unpractical; impracticality. rare, uncountable

From unpractical + -ness.