Synonyms for Unhappy (same or very similar meaning)
WordNet sense 1 (very unhappy; full of misery):
miserable, wretched
WordNet sense 2 (marked by or producing unhappiness):
infelicitous
WordNet sense 3 (not favored by fortune; marked or accompanied by or resulting in ill fortune):
unfortunate
WordNet sense 4 (generalized feeling of distress):
distressed, dysphoric
From the ODE community, based on WordNet
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