Thesaurus
Synonyms & Antonyms of impregnable
1
incapable of being defeated, overcome, or subdued
- an impregnable fortress that had foiled one invader after another over the centuries
Synonyms for impregnable
Words Related to impregnable
Near Antonyms for impregnable
- exposed,
- imperiled
- (or imperilled),
- insecure,
- liable,
- open,
- susceptible,
- unguarded,
- unprotected,
- unsafe
Antonyms for impregnable
2
impossible to get through or into
- the castle's supposedly impregnable walls
Synonyms for impregnable
- impassable
- (also impassible),
- impenetrable,
- impermeable,
- impervious
Words Related to impregnable
Near Antonyms for impregnable
Antonyms for impregnable
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Time Traveler for impregnable
The first known use of impregnable was in the 15th century
See more words from the same century