Impregnable
adjective
Impossible to break into
“The royal vault is said to be impregnable, though thieves keep trying.”
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What does impregnable mean?
Commonly confused with
- NotEasily entered
- NotPoorly guarded
- NotRecently abandoned
Nearby words
Impregnable is one of 1,969 SAT words in Professor Tas, a free story game where you learn them in context instead of from a list.
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