Some of his inappropriate comments were clearly sexually-motivated, which made his colleagues uncomfortable.

sexually 是形容词 sexual（性的、性别的）的副词形式，表示"与性有关的"。 motivated 是动词 motivate（激发、促使）的过去分词形式，表示"被...驱动的"。 sexually-motivated 这个复合形容词表示"由性欲驱动的"或"带有性动机的"，形容某种行为或言论背后的动机与性有关。