e.g. After losing her brother, the girl was very unhappy.
e.g. It was just an unhappy coincidence that he came to the city the very day she had to leave.
e.g. The unhappy omen that was causing misfortunes in the family.
e.g. An unhappy choice of words in the speech.
"Your most unhappy customers are your greatest source of learning." -- Bill Gates
green with envy
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