tippiness

noun

1. (uncountable)The quality of being tippy, tendency to tip or tilt over.

   “It was low tide, so there was a long, sickening ladder with slimy rungs to climb down to get to the canoe. The man’s big laugh and the tippiness of the canoe were even more frightening than the ladder.”

   “[…] the government’s recently released rollover test results for the 2004 model year show that SUVs vary widely in their tippiness, giving buyers more incentive to shop around.”

   “[…] a bag of personal belongings carried on the back of a wheelchair will increase its ‘tippiness’.”