gloomy
Gloomy, depressed.
The antonym of logical is illogical. The antonym of jovial (cheerful - the nature of Jupiter) would be saturnine (gloomy - the nature of Saturn).
Gloomy and glum are the opposite of cheerful. They begin with the letter G.
Bright.
Appealing, bright, comfortable, nice, pleasant, sunny...
Some antonyms of "depressed" are joyful, happy, elated, content.
Antonyms for gloomy are bright, light and sunny.
An antonym for the word 'lively' would be 'gloomy'.
sick, gloomy
Cheerful, joyful
sad