Phantom adjectives are listed in this post. Each word below can often be found in front of the noun phantom in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing PHANTOM.
airy, beautiful, dark, delusive
dim, elusive, empty, favorite
fleeting, ghastly, grisly, hideous
horrible, mere, own, pale
same, shadowy, vain
Hope this word list had the adjective used with phantom you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.