solitary

adjective

• done or existing alone:I live a pretty solitary life tigers are essentially solitary
• (of a place) secluded or isolated:solitary farmsteads
• [attributive often with negative] single; only:we have not a solitary shred of evidence to go on
• (of a bird, mammal, or insect) living alone or in pairs, especially in contrast to related social forms:a solitary wasp
• (of a flower or other part) borne singly.

noun (plural solitaries)

• 1a recluse or hermit.

• 2 informalshort for solitary confinement.