nonsmoker nonsludging • nonsmoking · · · Info · Definitions · Synonyms · Antonyms · Characters · · nonsmoker · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a person who does not smoke tobacco. · · Noun Definition 1 (noun) a passenger car for passengers who want to avoid tobacco smoke. Synonyms: nonsmoking car. · · Noun Definition 2 Synonyms · · · nonsmoking car · · Synonym 1 Antonyms · · · smoker · · Antonym 0 tobacco user · · Antonym 1 Characters · · e latin small letter e U+0065 k latin small letter k U+006B m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073