Simple Definition of indomitable

from our Learner's Dictionary

indomitable

adjective

ɪnˈdɑːmətəbəl

formal : impossible to defeat or discourage

Her spirit was indomitable. [=unconquerable]

her indomitable courage/strength/will

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“Indomitable.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/indomitable. Accessed 20 Jun. 2026.

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