Final answer:
The opposite of dismal is 'bright' as it represents a cheerful and positive antonym, contrasting the negative connotations of dismal.On the contrary, gloomy, sad, and depressing all share a similar negative sentiment to dismal and therefore are not opposites.
Step-by-step explanation:
The opposite of dismal, which is a word used to describe something that is depressing or causing gloom, would be something that conveys a sense of joy, brightness, and positivity. Given the options provided, the answer is 1) Bright. This is because 'bright' generally refers to light or luminosity, which metaphorically can mean cheerful or hopeful, and it embodies the antithesis of dismal's negative connotations. On the contrary, gloomy, sad, and depressing all share a similar negative sentiment to dismal and therefore are not opposites.