IPA: /ˈɛm.jə.ləs.nəs/
KK: /ˈɛm.jə.ləs.nəs/
The quality of wanting to be as good as someone else or to surpass them in achievement.
Her emulousness drove her to work harder than her peers to achieve success.
Emulousness → It is formed from "emulous" (from Latin "aemulus", meaning rival or striving to excel) and the suffix "-ness" (meaning the state or quality of). The word "emulousness" refers to the quality of being eager to surpass or rival others.
Think of 'striving to excel' ('aemulus') and remember that 'emulousness' means the quality of wanting to outdo others.