Pretext adjectives are listed in this post. Each word below can often be found in front of the noun pretext in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing PRETEXT.
better, colorable, colourable, convenient, decent, excellent, fair
false, first, flimsy, fresh, frivolous, further, good
immediate, just, least, legal, mere, new, only
ostensible, other, plausible, possible, reasonable, religious, same
shallow, slight, slightest, smallest, specious, such, sufficient
trifling, trivial, vain, welcome
Hope this word list had the adjective used with pretext you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.