loner

Other pupils told Indonesian news outlets that the suspect was a "loner" who often made drawings depicting violence, and who had been found lying on the ground following the explosion.

There’s a lot of wacky odd-couple chemistry in their interactions; she was programmed to have, or at least imitate, human emotional intelligence, while he is more given to broad statements about being a fierce loner.

A loner who never married, Lowry retired as a rent collector from Pall Mall Property Co. on his 65th birthday.

He also brings his quirkiness to more serious roles, including a childlike loner in a bunker society in the dystopian “Silo.”

She said she turned a chair so her back was towards him and described how the man didn't interact with many people, adding: "He was like a loner."