Adjective:

अनुपलब्ध,

unmailable's Usage Examples:

" unmailable in the United States.

[citation needed] Since the postal inspectors periodically declared "unmailable" letters to and from the business names he used, he changed those frequently.

October 1954 issue "obscene, lewd, lascivious and filthy" and therefore unmailable under the Comstock laws.

the Milwaukee Leader"s second class status and declare its newspaper "unmailable.

The back of the card says "unmailable".

of Los Angeles declared the October, 1954 issue obscene and therefore unmailable under the Comstock laws.

same year, Guild Press magazines were seized in Virginia, being deemed unmailable by the US Post Office.