Word: Inexpugnable
Part of Speech: Adjective
The word "inexpugnable" means something that cannot be overcome, defeated, or challenged. It describes something that is very strong and cannot be taken down or refuted.
While "inexpugnable" primarily refers to something that cannot be overcome or defeated, it can also imply that something is unchallengeable in terms of validity or truth, such as a strong argument.
While there are no direct idioms or phrasal verbs that use "inexpugnable," you might encounter phrases like: - "Stand your ground," which means to maintain your position or belief, similar to the strength implied by "inexpugnable."
To sum up, "inexpugnable" describes something that is impossible to defeat or challenge, whether it's a belief, argument, or structure.