khổ sở 
unhappy like: unglücklich → →
unglücklich ☊ 
bất hạnh ☊ 
☊ unglücklich ☊ 不幸的 ☊ bú xìng de Es ist eine Schande, dass er deine Schwester so unglücklich gemacht hat. ☊ Đó là một sự hổ thẹn, rằng anh ta đã làm chị gái em bất hạnh như thế. ☊ (Lektion 61, Nr. 867) I am not altogether happy (= I am very unhappy) about the decision. ☊ altogether ☊
The kids took the dog's death very badly (= they were very unhappy). ☊ badly ☊
desperately ill/unhappy/lonely ☊ desperately ☊
An unhappy home environment can affect a child's behaviour. ☊ environment ☊
I could no longer ignore the fact that he was deeply unhappy. ☊ fact ☊
impression (that...): I did not get the impression that they were unhappy about the situation. ☊ impression ☊
He's a lost soul (= a person who does not seem to know what to do, and seems unhappy). ☊ lost ☊
a happy/unhappy marriage ☊ marriage ☊
He's always in a bad mood (= unhappy, or angry and impatient). ☊ mood ☊
realize (that)...: I didn't realize (that) you were so unhappy. ☊ realize ☊
see sb/sth + adj.: I hate to see you unhappy. ☊ see ☊
The stories are all variations on the theme of unhappy marriage. ☊ theme ☊
It was an unfortunate accident. ☊ unfortunate ☊
It won't be finished for a few weeks. Unfortunately! ☊ unfortunately ☊
to be/look/seem/sound unhappy ☊ unhappy ☊
an unhappy childhood ☊ unhappy ☊
I didn't realize but he was deeply unhappy at that time. ☊ unhappy ☊
He was unhappy at being left out of the team. ☊ unhappy ☊
By some unlucky chance, her name was left off the list. ☊ unlucky ☊
Start number 13 proved unlucky for the Swiss skier. ☊ unlucky ☊