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
Keep scrolling for more
Keep scrolling for more
Comments on impregnable
What made you want to look up impregnable? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Words of Snow and Ice Quiz
- Which of the following refers to thin, bending ice, or to the act of running over such ice?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Anagram puzzles meet word search.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- Words of Snow and Ice Quiz
A selection of words from the chillier parts of t...
Take the quiz - Name that Thing: Toys and Games Edition
It's all fun and games until someone beats your h...
Take the quiz - True or False?
Test your knowledge - and maybe learn something a...
Take the quiz - SCRABBLE® Sprint
SCRABBLE® fans, sharpen your skills!
Play the game
Share impregnable
Time Traveler for impregnable
The first known use of impregnable was in the 15th century
See more words from the same century