The phrase "adventure matters" is correct and usable in written English.
You can use it to emphasize the importance or significance of adventure in a particular context, such as personal growth or experiences.
Example: "In life, adventure matters; it shapes who we are and how we view the world."
Alternatives: "adventure is important" or "the significance of adventure".
He shows no condescension for Eilis's passivity but records her cautious adventures matter-of-factly, as if she were writing them herself in her journal.
"We are sure that no military adventure, no matter how bloody, would last for more than 24 hours".
They topped the Christmas ratings with Wallace and Gromit's bakery adventure, A Matter of Loaf and Death, but Aardman Animations' latest challenge is their most daunting yet.
In the guise of a science-fiction adventure in matter transmission, the novel gazes scouringly on the fate of humanity as we become our tools, progressively losing the thread of ourselves.
But, ultimately, like all of her other professional experiences, her efforts to make it into space are part of a broader, lifelong mission that Sierra-Sastre has given herself over the years: motivating others, particularly those from Latin America, while looking for her next great adventure, no matter where it takes her.
The post-apocalyptic drama "Defiance" is back for a third season, followed by the new lost-in-space adventure "Dark Matter".
Thankfully, the American people no longer seem prepared to follow their misleaders on yet another adventure, no matter how loud Senators McCain and Graham and certain editorial writers decry that wise choice.
On the surface, Potter's rendition of Harkness's adventures appears matter-of-fact, like Harkness herself.
Some travelers savor every opportunity to try all manner of foreign cuisine on their adventures, no matter how unusual or outside their everyday experience the dish may be.
