Added 10 October 2026 faulting noun Categories: NatureRare Words noun ! Definition from WordNet 3.1, Princeton University. More about faulting at Wordnik → Where our words come from → (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other. they built it right over a geological fault Related Words: defectdemeriterrormistakeblamebreakfractureflawoverthrustloophole Back to today's word