© 2026 Sloth Lingo. Learn easy. Lounge wisely.

impregnability

Upper-Intermediate (B2)

IPA: /ɪmˈprɛɡnəˌbɪlɪti/

KK: /ɪmˈprɛɡnəˌbɪlɪti/

noun
Definition

The state of being impossible to capture or defeat; being very strong and secure.


Example

The fortress was known for its impregnability, making it a safe refuge during the war.


Conversation
Sloth A
Did you hear about that new game with the castle's impregnability?
Sloth B
Yeah, I heard it's nearly impossible to break in!
Sloth A
It's fascinating how they designed it to make it feel so secure.
Sloth B
Definitely! I love games that challenge your strategy like that.

Synonyms & Antonyms
Synonyms
invulnerability
fortress
strength
Antonyms
vulnerability
weakness
fragility
Root Explanation

Impregnability is formed from "im-" (meaning not) and "pregnare" (meaning to conceive or become pregnant) combined with the suffix "-ability" (meaning the quality of being able to). The term refers to the quality of being unable to be penetrated or conquered, much like a fortress that cannot be taken.

Memory Tip

Think of 'not able' ('im-' means not, and '-ability' means the quality of being able) to remember that 'impregnability' refers to something that cannot be penetrated or conquered.

Visually Confused Words
pregnability
impugnability
impenetrability
importability
impeccability
imaginability
rentability
reinability
Is this page helpful?