source: Anime Review: Grand Blue

1. |əˈfensiv| causing someone to feel deeply hurt, upset, or angry:

«…に対して» 〈言葉･態度などが〉失礼な, けしからぬ, 侮辱的な «to» (↔ inoffensive)

e.g. the allegations made are deeply offensive to us

e.g. offensive language.

(of a sight or smell) disgusting; repulsive:

｟かたく｠ «…にとって» 不快な «to»

e.g. an offensive odor.

2. |ˈäfensiv| attributive actively aggressive; attacking:

攻撃側の〈選手など〉(↔ defensive)

e.g. offensive operations against the insurgents.

(of a weapon) meant for use in attack:

｟かたく｠ 〖名詞の前で〗(軍事的に)攻撃用の(↔ defensive)

e.g. he is also accused of possessing an offensive weapon.

chiefly North American (in a game) relating to the team or player who is seeking to score.

｟米｠ 〖名詞の前で〗〘スポーツ〙 攻撃的な〈試合･戦術など〉

noun |əˈfensiv|

an attacking military campaign:

｟かたく｠ «…に対する» 攻撃, 攻勢 «against»

e.g. an impending military offensive against the guerrillas.

an organized and forceful campaign to achieve something, typically a political or social end:

e.g. the need to launch an offensive against crime.

act or be ready to act aggressively.

go on the offensive (or go on to the offensive or take the offensive)

take the initiative by beginning to attack or act aggressively:

e.g. security forces took the offensive ten days ago.

offensiveness |əˈfensivnəs| noun

mid 16th century: from French offensif, -ive or medieval Latin offensivus, from Latin offens- ‘struck against’, from the verb offendere (see offend).