Impetus adjectives are listed in this post. Each word below can often be found in front of the noun impetus in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing IMPETUS.
added, additional, certain, considerable, creative, early, economic, enormous, external, extra
extraordinary, final, first, forward, fresh, further, great, greater, greatest, immediate
immense, important, increased, initial, intellectual, irresistible, key, little, main, major
marked, mighty, moral, more, much, necessary, needed, new, original, own
political, powerful, primary, real, renewed, same, significant, special, strong, such
sudden, sufficient, tremendous, very, vital, wonderful
Hope this word list had the adjective used with impetus you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.