professionalism professional • professionalist · · · Info · Definitions · Characters · · professionalism · · Text Latin · · Script 15 · · Length Definitions · · · (noun) the expertness characteristic of a professional person. · · Noun Definition 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073