hard to say or predict, difficult to speak out (for fear of embarrassing or paining others, etc.) not easy to express with words
?【卯集上】【心部】 康熙筆畫:15畫,部外筆畫:11畫
《廣韻》莫霞切《集韻》謨加切,音麻。《集韻》?,難語也。或從心。