A bleak smile is a smile that isn't really a "real" smile. It's a smile that is full of sorrow and is gloomy and somber.
Some synonyms for bleak are somber, dreary, dark, and cheerless.
The prefix for "bleak" is "un-." The addition of the prefix "un-" changes the meaning of the word to indicate the opposite of bleak, which is typically something more positive or hopeful. Prefixes are morphemes added to the beginning of a word to modify its meaning, and in this case, "un-" serves to negate the original meaning of "bleak."
Bleak and gloomy are the synonyms in that sentence.
There was a bleak wind between the mountains
bleak
" The economic situation looked very bleak indeed!"
the desert looked bleak
bleak
Bleak Moments was created in 1971.
Bleak Spring was created in 1993.
Bleak House was created in 1853.
The duration of Bleak Moments is 1.85 hours.
The duration of Bleak Expectations is 1680.0 seconds.
The duration of Bleak Night is 1.93 hours.
Bleak Seasons was created in 1996-04.
Bleak Seasons has 307 pages.
I feel very bleak today. My dog died last night.