: impossible to harm, damage, or defeat
teenagers who think they are invulnerable
The candidate seems to be in an invulnerable position.
The team seems invulnerable this season.
—often + toa city invulnerable to invasion
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“Invulnerable.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/invulnerable. Accessed 21 Jun. 2026.
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