Merriam-Webster's Word of the Day for December 8, 2023 is:

intrepid • \in-TREP-id\  • adjective

Intrepid means “fearless, bold, and brave.”

// Her college semester abroad sparked a series of intrepid travels around the world.

See the entry >

Examples:

“After a trio of tech billionaires are forewarned of an apocalyptic superbug and flee to a secret doomsday bunker to save only themselves, an unlikely group of friends embark on an intrepid mission to take down the wealthiest and most powerful people in the world. Beginning with the end of civilization and jumping back and forth through time, Naomi Alderman, the award-winning author of 2016's The Power, weaves a cautionary tale of what society stands to lose in a near-future where AI has transformed all walks of life.” — Megan McCluskey, Time, 31 Oct. 2023

Did you know?

If you’re going to name a ship, whether an aircraft carrier or an interstellar starship, you could do worse than to name it the Intrepid, as both the United States military and Star Trek writers have done, respectively. (Technically “Intrepid” is a class of Trek ships that includes the Voyager, etc., but you get the drift.) Intrepid, after all, comes from the Latin word intrepidus, itself formed by the combination of the prefix in-, meaning “not,” and the adjective trepidus, meaning “alarmed.” When not designating sea or space vessels, intrepid aptly describes anyone—from explorers to reporters—who ventures bravely into unknown territory, though often you’ll see the word loaded with irony, as in “an intrepid couch surfer endeavored to watch every installment of the beloved sci-fi series in chronological order.” Intrepid word lovers may be interested to know of the existence of trepid, meaning “fearful”; it predates intrepid but most are too trepid (or simply unaware of its existence) to use it.