Dismissal adjectives are listed in this post. Each word below can often be found in front of the noun dismissal in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing DISMISSAL.
abrupt, arbitrary, casual, complete, contemptuous
curt, early, easy, final, formal
hasty, ignominious, immediate, instant, outright
own, peremptory, polite, prompt, quick
subsequent, such, sudden, total, unfair
unjust, voluntary, wholesale, wrongful
Hope this word list had the adjective used with dismissal you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.