Synonym of MOROSE

Answer: Option A

Gloomy : causing or feeling depression or despondency.
Stupid : having or showing a great lack of intelligence or common sense.
Serious : demanding or characterized by careful consideration or application.
Stern : (of a person or their manner) serious and unrelenting, especially in the assertion of authority and exercise of discipline.
Morose : sullen and ill-tempered.

Synonym of Morose is Gloomy