Defensive means meant to protect — or quick to take criticism badly. The same word for a wall and for a wounded ego.
The military and sporting sense is neutral, so a defensive position and a defensive formation are simply about protecting. The personal sense is a criticism, since somebody who gets defensive treats a mild question as an attack, and that is the commonest use in everyday speech. There is a fixed phrase, on the defensive, meaning under pressure and only reacting. Its opposite in both senses is offensive.
Middle French
défensif
English, today
defensive
From Middle French défensif. Morphologically defense + ive.
Etymology from Wiktionary, CC BY-SA
Practised in A Man Called Ove
First appears in chapter 4 of A Man Called Ove.
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