Calmness adjectives are listed in this post. Each word below can often be found in front of the noun calmness in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing CALMNESS.
affected, apparent, assumed, awful, certain, comparative, desperate, dignified
entire, equal, extraordinary, forced, great, greater, greatest, habitual
holy, imperturbable, inner, judicial, majestic, mental, more, much
outward, own, perfect, philosophic, philosophical, provoking, quiet, same
serene, singular, strange, such, sudden, sweet, terrible, unnatural
unruffled, unusual, usual, utmost, very, wonderful, wonted
Hope this word list had the adjective used with calmness you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.