The cake had an unpleasant cheesiness that made it too rich to enjoy.

cheesiness 是由名词 cheese（奶酪）加上后缀 -iness 构成的名词。cheese 指"奶酪"，后缀 -iness 表示某种性质或状态，组合起来表示"奶酪味"或"奶酪般的质地"，常用来形容食物中过于浓重的奶酪风味或口感。