say it: STIL-nuhs
stillness is a noun meaning "(poetic) tranquil silence". It carries 3 recorded senses.
calmness without winds
a state of no motion or movement
“the utter motionlessness of a marble statue”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for stillness come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.