IPA: /ˈvɪɡərəsnəs/
KK: /ˈvɪɡərəsnəs/
The state of being strong, active, and full of energy.
Her vigorousness in pursuing her goals inspired everyone around her.
Vigorousness → It is formed from "vigor" (from Latin "vigor", meaning liveliness or energy) and the suffix "-ous" (meaning full of) combined with the suffix "-ness" (meaning the state or quality of). The word "vigorousness" means the state of being full of energy or liveliness.
Think of 'vigor' as energy and 'full of' ('-ous') to remember that 'vigorousness' refers to the quality of having a lot of energy.