indomitable

Etymology

From Late Latin indomitābilis, from in- (“not”) + domitō, frequentative of domō (“to tame”).

adj

1. Incapable of being subdued, overcome, or vanquished.
   Personal courage and an indomitable self-confidence were the chief, indeed the only, qualities which sprang to light in General Feversham. 1902, A. E. W. Mason, chapter 1, in The Four Feathers
   But he was a youth of indomitable spirit, strong and agile as a wild cat. 1910, William Henry Hudson, chapter 7, in A Shepherd's Life
   Nobody came on to the movie camera—wrapped it in a bear hug and wrestled it to submission—like Betty Hutton. They called this 40s singer-actress "the Blitzkrieg blond" . . . . [S]he was indomitable, unstoppable. March 31, 2007, Richard Corliss, “When Betty Got Frank”, in Time, archived from the original on 2010-12-03
   And even though the rest of the auto industry, seeing Tesla’s growth, jumped on the electric vehicle bandwagon, Tesla has maintained an indomitable lead. 2022-04-28, Farhad Manjoo, “Is Elon Musk Really That Bad?”, in The New York Times, →ISSN