IPA: /dɪˈfɛnsɪvli/
KK: /dɪˈfɛnsɪvli/
In a way that protects oneself or avoids danger.
She spoke defensively when questioned about her decision.
Defensively → It is formed from "defensive" (from Latin "defensivus", meaning to defend) and the suffix "-ly" (meaning in a manner of). The word "defensively" means in a manner that is intended to defend or protect.
Think of acting in a way that is meant to 'defend' — 'defensive' relates to protection, and '-ly' indicates the manner of doing something.