Only hours earlier, his family was slain in a brutal and apparently motiveless massacre.
From the latimes.com
Or was Kevin's a fathomless, motiveless evil?
From the guardian.co.uk
The action is arbitrary and apparently motiveless.
From the time.com
John Foyston of The Oregonian strongly condemned the film as gratuitously gory with thin, motiveless characters.
From the en.wikipedia.org
He comes from a long line of lawmen, and is having trouble comprehending the rising tide of motiveless malignity in his jurisdiction.
From the time.com
With power and wonder, both Poe and Duras show us that an act may be most distinctively human and lifelike precisely because it is logically motiveless.
From the time.com
The meme is interpreted by most Chinese online as a form of direct protest rather than motiveless intentional disruption to Baidu services.
From the en.wikipedia.org
Rather than the embodiment of motiveless malignity, Richard is simply a skillful and ruthless practitioner of the techniques of his backstabbing times.
From the time.com
But the emotional range is narrow and externalised, particularly at the conclusion, when his primal howl of grief at the suicide of his mother-wife seems entirely motiveless.
From the morningstaronline.co.uk
More examples
Occurring without motivation or provocation; "motiveless malignity"; "unprovoked and dastardly attack"- F.D.Roosevelt