Meanings of unsatisfiable in English

I raved for freedom because I was myself in the bondage of unsatisfiable longing.

The situation confronting the dying city now, and its citizens, too, posed problems enough without its being recomplicated by an unsatisfiable homesickness.

Recognizing the unsatisfiable longings of my Scotch Highland instincts, he threw out some hints concerning Bloody Cañon, and advised me to explore it.