That's enough to make anyone unhappy. 所有人都会因此而忧伤。
an unhappy marriage 不幸的婚姻
I was very unhappy with the service. 我对服务很不满意。
Synonyms: blue (SAD) dejecteddepresseddespondentdispiriteddolefuldolorous down downcastdownhearted(down) in the dumpsgloomyglum low low-spiritedmelancholy miserable (UNHAPPY)mournfulplaintivesad (NOT HAPPY)sorrowful the doldrums