Adjective

(en adjective)

Impossible to eliminate or destroy; impregnable.

* {{quote-book, year=1840, author=Thomas Carlyle, title=Heroes and Hero Worship, chapter=, edition= citation

, passage=My one hope of the world, my inexpugnable consolation in looking at the miseries of the world, is that this is altering.}}

* {{quote-book, year=1911, author=H. G. Wells, title=The Country of the Blind, And Other Stories, chapter=, edition= citation

, passage=It crept into one's mind, a distress as vague and inexpugnable as a sea fog on a spring morning, and presently one shivered and wanted to go indoors...}}

* {{quote-book, year=1915, author=Joseph Conrad, title=Victory, chapter=, edition= citation

, passage=This seemed to be an inexpugnable refuge, where we could live untroubled and learn to know each other."}}

Adjective

(en adjective)

Incapable of being subdued, overcome, or vanquished.

* 1902 , , The Four Feathers , ch. 1:

Personal courage and an indomitable self-confidence were the chief, indeed the only, qualities which sprang to light in General Feversham.

* 1910 , , A Shepherd's Life , ch. 7:

But he was a youth of indomitable spirit, strong and agile as a wild cat.

* 2007 , , " When Betty Got Frank," Time , 31 March:

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.