LEARNit Dictionary
impregnable
adjective
/ɪmˈpreɡnəbl/
UK
/ɪmˈpreɡnəbl/
US
1
an
impregnable
building is so strongly built that it cannot be entered by force
غیرقابل تسخیر, نفوذناپذیر
2
strong and impossible to defeat or change
تسخیرناپذیر, شکستناپذیر
The team built up an impregnable 5–1 lead.
the seemingly impregnable Nazi regime
synonym
invincible