white elephant
B2CEFR level
55/100Rarity: uncommon
TechnicalRegister
A costly asset or investment that has become a burden because it is impractical or no longer useful.
The acquired headquarters campus turned into a white elephant once the merged company shifted to remote work.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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