IPA: /əˈsɜːtɪvnəs/
KK: /əˈsɜrtɪvnəs/
The quality of being confident and able to express one's opinions or needs clearly and firmly.
Her assertiveness in meetings helped her team achieve their goals.
Assertiveness → It is formed from "assert" (from Latin "assertus", meaning to affirm or declare) and the suffix "-ness" (meaning the state or quality of). The word "assertiveness" refers to the quality of being confident and self-assured in expressing one's opinions or needs.
Think of the act of 'affirming' or 'declaring' something confidently — that's what assertiveness means, the quality of being confident in expressing yourself.