The solitary hiker enjoyed the peace of the mountains.

Being alone or without companions.
The solitary house stood on the hill.
She preferred a solitary walk.
He lived a solitary life.
solitary traveler
solitary confinement
solitary figure
isolated
alone
secluded
The tiger is a solitary animal, often hunting alone.

Living or being alone, often referring to an animal that prefers to be by itself rather than in a group.
She enjoyed her solitary walk in the park.
He lived a solitary life in the mountains.
The bird built a solitary nest high up.
solitary confinement
solitary figure
solitary pursuit
alone
secluded
isolated