The term MEAN MIEN is composed of two words, each with five letters. The first word, MEAN, is defined as unkind or spiteful. The second word, MIEN, is defined as a person's outward appearance or bearing. Together, the term MEAN MIEN can be interpreted to MEAN an unkind or spiteful outward appearance or bearing. The crossword solution for this term is SNEER, which is defined as a facial expression of contempt or scorn. Therefore, the term MEAN MIEN can be summarized as an expression of contempt or scorn in one's outward appearance or bearing.