Definition of "offensive"

A survey at Yale University had 63% of students wanting professors to issue “trigger warnings” before saying anything that some might find offensive or could cause painful emotions.

2016 September 12, Kareem Abdul-Jabbar, “Kareem Abdul-Jabbar: Political Incorrectness Is Just a Strategy”, in Time‎

In his submission to the UN, [Christof] Heyns points to the experience of drones. Unmanned aerial vehicles were intended initially only for surveillance, and their use for offensive purposes was prohibited, yet once strategists realised their perceived advantages as a means of carrying out targeted killings, all objections were swept out of the way.

2013 June 7, Ed Pilkington, “‘Killer robots’ should be banned in advance, UN told”, in The Guardian Weekly, volume 188, number 26, page 6

In Central Hupeh, the Japanese launched another offensive from the Kingshan region, but instead of moving southwestward to cooperate with another column of theirs to capture Shasi, this column swerved to the northwest and succeeded in capturing Chunghsiang on the Han River.

1939 January, Lin Yu, “The "China Incident"”, in Philippine Magazine‎, volume XXXVI, number 1, page 121