say it: SAD-nuhs
sadness is a noun meaning "emotions experienced when not in a state of well-being". It carries 3 recorded senses.
emotions experienced when not in a state of well-being
the state of being sad
“she tired of his perpetual sadness”
the quality of excessive mournfulness and uncheerfulness
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 sadness 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.