IPA: /ɪnˈtrɛpɪdnəs/
KK: /ɪnˈtrɛpɪdnəs/
The quality of being brave and fearless, especially in facing danger or challenges.
Her intrepidness allowed her to explore the uncharted territories without fear.
Intrepidness is formed from "intrepidus" (from Latin, meaning fearless or undaunted) and the suffix "-ness" (meaning the state or quality of). The word describes the state of being fearless or showing courage in the face of danger.
Think of 'fearless' ('intrepidus') to remember that 'intrepidness' means the quality of being fearless.