"ultimate passion" is correct and usable in written English.
It is used to refer to the greatest or strongest passion one has for something. For example: His ultimate passion for dance drove him to become a professional dancer.
Here was perhaps the most famous art historian alive, whose influence brought other great thinkers in by gravitational pull, whose ideas literally rewrote art history, yet whose ultimate passion was teaching students how to see the beauty of the world around them.
My ultimate passion is assisting in the creation of more sustainable business practices through energy conservation and efficiency.
"I don't think acting is my ultimate passion," she says about a week before the "Ninja Turtles" opening.
Every year since I can remember I've grappled with why this so-called sport is such a fascination and ultimate passion for hundreds of thousands of hunting enthusiasts.
Not domestic stuff or DIY (the ultimate passion killer) but shared experiences that reintroduce that crucial element of risk and daring, the butterflies-in-the-stomach uncertainty of those heady days when you first met.
My ultimate passion in life is connecting with people around the world through photography and the portrait process, and it was almost as if the Batéy 106 was designed especially to fulfill it.
Impatience isn't a bad thing when it leads problem-solvers to identify smarter, better, less expensive solutions, all the while helping caring people better hone their strengths and ultimate passions.
His Apollonian approach to Mahler, with his particular concern for textural clarity, does not sit well with those Mahler devotees who look to the symphonies for the ultimate in passion, intensity and catharsis.
The effect is distancing because it illustrates the ultimate banality of passion.
Eric: I've found that starting a new company is the ultimate test of passion, determination and persistence.
Owner Stéphane is the ultimate host, with a passion for the finer things in life.
