What is an antonym for cheerful?

Here are some antonyms for cheerful, depending on the specific context:

General antonyms:

* Gloomy

* Sad

* Depressed

* Unhappy

* Melancholy

* Downcast

* Morose

* Sombre

* Dour

* Grumpy

* Irritable

Antonyms emphasizing lack of energy or excitement:

* Dull

* Listless

* Apathetic

* Indifferent

Antonyms emphasizing negativity:

* Pessimistic

* Cynical

* Bitter

The best antonym will depend on the specific situation you are describing.