What is "unmingled"

Usage examples of "unmingled".

That flows unmingled from the Flood, Thy scutcheon spotted with the stains Of Norman thieves and pirate Danes!

I would that after weary strife, And storm beneath the piping wind, The current of my true fresh life Might come unmingled, unimbrined, To where thou floatest free.

While the prosecuting attorney was speaking, the accused listened open-mouthed, with a sort of astonishment, not unmingled with admiration.