Home › Words › S › smoglessnesssmoglessnesssmoglessness means absence of smog.Among words judged in Lexicurio's Arena, smoglessness ranks #41,251 of 42,785 for Qualifying.EtymologyFrom smogless + -ness.nounAbsence of smog.Definitions & examples from Wiktionary (CC BY-SA 3.0).