de·fen·sive¹/dɪ`fɛnsɪv; dɪˈfensɪv/ adj 1 used for protection against attack 防御性的，防守的: defensive weapons 防御性武器 2 behaving in a way that shows you think someone is criticizing you 〔指人的行为〕防卫的，自卫的: She got really defensive when I asked her why she hadn't finished. 我问她为什么还未做完时，她完全是一副准备自卫反击的样子。