The state or quality of being laughable; ludicrousness.(noun)
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Use "laughableness" in a sentence
"But Collins's eyes had read health, vigour, and long life, as well as laughableness of appearance and action in the long-eared hybrid."
"It was his way to pretend that we knew far more than we did; so with perfect courtesy and gravity, he would ask our opinion on some matter of which we knew next to nothing; and we knew it was only his exquisiteness of good manners that impelled the habit; and we knew he knew the laughableness of it; yet we adored him for it."
"The clown's lips were very sober in spite of the general laughableness of his face, but as he kept looking at Jerry a smile started right at the corners of his mouth and then disappeared."