Select the most appropriate ANTONYM of the given word.
Cheerful

The correct option is Gloomy.

Explanation:

Let us analyze the meaning of the given word and the provided options:

1. Cheerful: Feeling, showing, or causing happiness, joy, or good spirits (e.g., in a happy and bright mood).

2. Gloomy: Dark or poorly lit; feeling distressed or expressing sadness, dark mood, or hopelessness. This is the direct opposite (antonym) of Cheerful.

Let us also look at the meanings of the other options:

• Joyful: Feeling, expressing, or causing great pleasure and happiness (Synonym of Cheerful).

• Sunny: Bright with sunlight; cheerful and merry in disposition (Synonym of Cheerful).

• Hilarious: Extremely funny or amusing.

Therefore, the most appropriate antonym of Cheerful is Gloomy.