Adjective:

मन से बाहर का, ख़याल से बाहर का, विचार में न आनेवाला, अकल्पनीय,

unimaginable's Usage Examples:

Visiting the grounds of this castle, it is easy to imagine that the kings of France used such a place a hunting retreat; what is unimaginable is the size and the splendor of the building itself.

But once in the Badlands, Voyager is seized by a powerful force and hurled an unimaginable distance.

pillage the legendary city of its unimaginable riches?

Three years afterwards the same theme was rehandled with no less magnificent mastery in L'Homme qui rit; the theme of human heroism confronted with the superhuman tyranny of blind and unimaginable chance, overpowered and unbroken, defeated and invincible.

I was as much affected by the faint hum of a mosquito making its invisible and unimaginable tour through my apartment at earliest dawn, when I was sitting with door and windows open, as I could be by any trumpet that ever sang of fame.

If we obtained this ten-thousand-fold increase simply by allowing specialization and dividing work up among people, then what astronomical gains will we achieve by outsourcing that work to robots capable of working with unimaginable precision at unimaginable speed?

In this process changes of structure are apt to occur, and sometimes unimaginable sacrifices of the normal appearance.

A wave of unimaginable pleasure coursed through her entire body.

Hurricanes release unimaginable amounts of power, as do earthquakes.

"One favor from a deity of unimaginable power," she said.

Synonyms:

unthinkable, impossible, out of the question, inconceivable,

Antonyms:

practical, realistic, hopeful, surmountable, thinkable,