Iteration adjectives are listed in this post. Each word below can often be found in front of the noun iteration in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing ITERATION.
constant, continual, current, damnable, endless
final, first, fourth, frequent, last
latest, monotonous, much, new, next
persistent, previous, recent, second, simple
single, subsequent, such, third, wearisome
Hope this word list had the adjective used with iteration you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.