Without hope. I am desperate of obtaining her.

Without care of safety; rash; fearless of danger; as a desperate man. Hence,

Furious, as a man in despair.

Hopeless; despaired of; lost beyond hope of recovery; irretrievable; irrecoverable; forlorn. We speak of a desperate case of disease, desperate fortunes, a desperate situation or condition.

In a popular sense, great in the extreme; as a desperate sot or fool .