Delusion adjectives are listed in this post. Each word below can often be found in front of the noun delusion in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing DELUSION.
absurd, agreeable, awful, collective, common, complete, curious, dangerous, dear, dreadful, empty
entire, extraordinary, fatal, fond, foolish, general, grand, great, greater, gross, happy
horrible, human, insane, mass, mental, mere, mischievous, miserable, monstrous, much, national
new, old, only, optical, other, own, paranoid, pernicious, pleasant, pleasing, popular
powerful, pure, religious, sad, same, self, sheer, similar, singular, strange, strong
such, sweet, temporary, terrible, universal, utter, vain, very, wild, wretched
Hope this word list had the adjective used with delusion you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.