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bleak
" The economic situation looked very bleak indeed!"
The Bleak mood at the funeral was depressing.
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
Bland, Dull
on page 40
nice, pleasant, comfortable, bright
bleak
Weak Bleak Streak
bleak word frail quail
Of all the bleak landscapes in the world, Antarctica has the bleakest.