Meanings of motiveless attack in English

They were stabbed more than 200 times in an apparently motiveless attack before the flat was set alight.

An Irish man murdered in Chicago last week in an apparently motiveless attack is being buried in Dublin's Glencullen Cemetery today.

Alexander Pacteau has been sentenced to 23 years for the murder of Karen Buckley, a crime that the judge called 'a brutal, senseless, motiveless attack'.

Gardai in Galway are investigating an incident in which a group of youths repeatedly rammed a woman's car in a motiveless attack early on Wednesday.

A pregnant Latvian woman who was punched in the face by a teenager has said she was left "stunned" by the motiveless attack.