Iterations adjectives are listed in this post. Each word below can often be found in front of the noun iterations in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing ITERATIONS.
additional, different, earlier, early
endless, few, fewer, further
future, later, many, more
multiple, new, numerous, other
previous, several, subsequent, successive
Hope this word list had the adjective used with iterations you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.