Antonyms of adj sunny

1 sense of sunny

Sense 1
cheery, gay, sunny -- (bright and pleasant; promoting a feeling of cheer; "a cheery hello"; "a gay sunny room"; "a sunny smile")

INDIRECT (VIA cheerful) -> depressing, cheerless, uncheerful -- (causing sad feelings of gloom and inadequacy; "the economic outlook is depressing"; "something cheerless about the room"; "a moody and uncheerful person"; "an uncheerful place")

Similarity of adj sunny

1 sense of sunny

Sense 1
cheery, gay, sunny -- (bright and pleasant; promoting a feeling of cheer; "a cheery hello"; "a gay sunny room"; "a sunny smile")
       => cheerful (vs. depressing) -- (being full of or promoting cheer; having or showing good spirits; "her cheerful nature"; "a cheerful greeting"; "a cheerful room"; "as cheerful as anyone confined to a hospital bed could be")