Imponderabilia (noun)
im-pond-er-a-bil-ee-a
things that cannot be precisely determined, measured, or evaluated.
First recorded in 1920–25. From Medieval Latin imponderābilis, “not ponderable.”
Imponderābilis comes from Latin ponderāre, “to weigh, reflect on,” a derivative of pondus, “weight.”
Example sentences
“He sat, looking at the sea and contemplated the imponderabilia of existence.”