IPA: /fɔːrˈmɪdəblnəs/
KK: /fɔrˈmɪdəblnəs/
The quality of being very powerful, impressive, or difficult to deal with, often causing fear or respect.
The formidableness of the mountain range left the hikers in awe.
Formidableness → It is formed from "formidabilis" (from Latin, meaning to be feared) and the suffix "-ness" (meaning the state or quality of). The word "formidableness" refers to the quality of being formidable or inspiring fear or respect.
Think of something that inspires fear or respect ('formidabilis') and remember that 'formidableness' describes the quality of being that way.