IPA: /strɛnjuˈɑːsɪti/
KK: /strɛnjuːˈɑːsɪti/
The quality of being very active, energetic, or requiring a lot of effort.
The strenuosity of the hike made it challenging for many participants.
Strenuosity is formed from "strenuus" (meaning active or vigorous) and the suffix "-ity" (meaning the state or quality of). The word describes the quality of being vigorous or energetic.
Think of 'strenuus' meaning active or vigorous, which helps you remember that strenuosity refers to the quality of being energetic.