indomitable
;
adjective: incapable of being subdued : unconquerable
Examples:
The memorial celebrates the indomitable spirit of the pioneers who ventured forth in search of a new life.
“The stones, removed as part of structural improvements to the bridge, speak to the indomitable nature of 19th-century workers, often immigrants, who somehow—with horses and pulleys— managed to move around that staggering weight.” — Sean Kirst, Syracuse.com (New York), June 16, 2015
Did you know?
The prefix in- means “not” in numerous English words (think of indecent, indecisive, inconvenient, and infallible). When in- teamed up with the Latin domitare (“to tame”), the result was a word meaning “unable to be tamed.” Indomitable was first used in English in the 1600s as a synonym of wild, but over time its sense of untamability turned from a problem to a virtue. By the 1800s, indomitable was being used for people whose courage and persistence helped them to succeed in difficult situations.
Youth Voices Magazine 