English dictionary
impregnable
adjectiveAudio pronunciation
Parts of speech
Definitions
adjective
- incapable of being overcome, challenged or refuted
adjective
- capable of conceiving
adjective
- immune to attack; incapable of being tampered with
Example sentences
an impregnable argument
impregnable self-confidence
an impregnable fortress
fortifications that made the frontier inviolable
a secure telephone connection
