say it: SMAHRT-nis
smartness is a noun meaning "a kind of pain such as that caused by a wound or a burn or a sore". It carries 4 recorded senses.
intelligence as manifested in being quick and witty
elegance by virtue of being fashionable
liveliness and eagerness
“he accepted with alacrity”
“the smartness of the pace soon exhausted him”
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 smartness 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.