2 (formal 正式) (only before a noun 只用于名词前) used for or connected with attacking 用于进攻的；与进攻有关的: offensive weapons攻击性武器 [OPP] defensive 反义词为defensive➔offensivelyadv
offensive²
/əˈfensɪv ||; əˈfɛnsɪv/noun [C] a military attack 军事进攻 be on the offensive to be the first to attack, rather than waiting for others to attack you 处于进攻状态（而非防御状态）