impregnable = de necucerit
No. The word impregnable already means "impossible to enter."You can replace the word impregnable with "impossible." If you still want to use the word, you can say"The opposing fort proved impregnable during the battle."Having the clause first is unwieldy.
Made out of concrete and lead, the fallout shelter seemed impregnable. They built stout castles in the middle ages believing them impregnable, until gunpowder came into use.
This is not a Romanian word.
Other words for "impregnable" (synonyms) are: potent, inviolate, unshakable, untouchable, unafraid, strong, secure, conceptive
The romanian word for snail is "melc"
The romanian word for tent is "cort"
The Romanian word for quince is gutuie.
The Romanian word for today is azi.
The Romanian word for the English word "book" is "carte".
In Romanian, the word "car" means "cart." The Romanian word for "car" is "mașină."
Impregnable / Infectious label *Mix your words and twist the syllables and you can rhyme any word. It's said that nothing can rhyme with orange. Orange / Porridge.
Impregnable has many synonyms. Some examples are invincible, unassailable, inviolable, secure, unattackable and strong. Inexpugnable is a synonym for impregnable, but it just doesn't sound like a word that anyone would ever use.