Exactness adjectives are listed in this post. Each word below can often be found in front of the noun exactness in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing EXACTNESS.
absolute, chronological, considerable, critical, equal, extreme, great
greater, greatest, historical, less, literal, logical, mathematical
mechanical, military, minute, more, much, perfect, possible
punctilious, remarkable, rigid, rigorous, same, scientific, scrupulous
singular, such, sufficient, surprising, tolerable, utmost, verbal
Hope this word list had the adjective used with exactness you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.