Imponderable – Can not be guessed or calculated; Unfathomable
(Pronounced im - pon - duh - ruh - buhl)
To remember the definition of the word imponderable, use the following mnemonic:
I'm pondering (imponderable) how deep the pond is. No one can guess how deep, it's unfathomable.
Examples of imponderable in a sentence
"So many jelly beans!" she scowled "The amount is just imponderable!"
There are too many imponderables for an overall prediction.
I focused on the imponderable math problem for several hours.