sol·i·tar·y
ˈsäləˌterē/
adjective
1.
done or existing alone.
"I live a pretty solitary life"
synonyms:lonely, companionless, unaccompanied, by oneself, on one's own, alone, friendless; More
antonyms:sociable
(of a place) secluded or isolated.
"solitary farmsteads"
synonyms:isolated, remote, lonely, out of the way, in the back of beyond, outlying, off the beaten track/path, godforsaken, obscure, inaccessible, cut off; More
antonyms:accessible
single; only.
"we have not a solitary shred of evidence to go on"
synonyms:single, lone, sole, unique; More
(of a bird, mammal, or insect) living alone or in pairs, esp. in contrast to related social forms.
"a solitary wasp"
(of a flower or other part) borne singly.