The weather today is a bit gloomyish.

She looked at him gloomfully as he walked away.

The Gloomy Guses gathered in the corner, casting a shadow over the room.

The gloomsome weather cast a shadow over the city.

She is known as the gloomleader in our group, always finding the negative in every situation.

The gloomleaders gathered to discuss their plans for the upcoming event.

She looked at him gloomingly.

The gloomsters gathered in the dark alley, spreading negativity and pessimism.

The gloomster sat alone in the dark room.

The gloomy octopus is a species of octopus found in Australia.