demeanour demeanor • demeclocycline hydrochloride · · · Info · Definitions · Synonyms · Characters · · demeanour · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) (behavioral attributes) the way a person behaves toward other people. Synonyms: demeanor, behavior, behaviour, conduct, deportment. · · Noun Definition 1 Synonyms · · · demeanor · · Synonym 1 behavior · · Synonym 2 behaviour · · Synonym 3 conduct · · Synonym 4 deportment · · Synonym 5 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 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 u latin small letter u U+0075