Adieu adjectives are listed in this post. Each word below can often be found in front of the noun adieu in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing ADIEU.
affectionate, bade, bid, bidden
bidding, eternal, final, fond
friendly, further, hasty, last
long, more, other, sad
silent, so, sorrowful, tender
Hope this word list had the adjective used with adieu you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.