MeanOF

indomitable

- adjective (adj)

Meaning: steadfast, unyielding

Synonyms: dogged impassable impregnable insuperable insurmountable invincible invulnerable obstinate pertinacious resolute ruthless staunch stubborn unassailable unbeatable unconquerable undefeatable unflinching willful
Antonyms: beatable conquerable unstable weak yielding

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.