Strongholds adjectives are listed in this post. Each word below can often be found in front of the noun strongholds in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing STRONGHOLDS.
ancient, chief, democratic, few
great, important, impregnable, last
main, many, military, old
other, own, principal, republican
spiritual, such, very
Hope this word list had the adjective used with strongholds you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.