By oneself, solitary.
Lacking peers who share one's beliefs, experiences, practices, etc.
Not requiring anything further; merely.
By oneself; apart from, or exclusive of, others; solo.
Without outside help.
Used to emphasize the size or extent of something by selecting a subset.
Not permitting anything further; exclusively.
Secluded from society (of a lifestyle, activity etc.); private, quiet.
Of a place: far from civilisation, not able to be easily seen or accessed; secluded.
Having left employment, especially on reaching pensionable age.
No longer in use or production.