Relic adjectives are listed in this post. Each word below can often be found in front of the noun relic in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing RELIC.
ancient, beautiful, cherished, curious, famous, genuine
great, historic, historical, holy, important, interesting
last, little, mere, noble, old, only
other, precious, priceless, quaint, religious, remarkable
sacred, sad, single, sole, strange, valuable
Hope this word list had the adjective used with relic you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.