Pyrrhic Victory 1100 Words You Need
/ˌpɪr.ɪkˈvɪk.tər.i/ (idiom)
Definition
a victory that is too costly and therefore not worth winning, bitter victory, a victory in which the winner suffers so much that it is tantamount to defeat:
Example
The camp could finally reach for the summit of Mount Everest. However, they lost 3 of their members. Such a Pyrrhic victory!
Antonym
crowning achievement, conquest, triumph, accomplishment