He was in a morose mood all day.

She sat morosely in the corner, refusing to speak to anyone.

Her moroseness was evident in her constant frown.

The morosenesses of the students were evident in their lack of enthusiasm.

He is feeling moroser today than yesterday.

Her morosity was evident in her constant frowning and lack of enthusiasm.

The morosities of the situation were evident to everyone.

His morose delectation was evident in his gloomy expression.

She indulged in morose delectations.

He is the morosest person I have ever met.