오리무중
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Meanings
Noun
1. being up in the air; a very uncertain and unclear situation (four-character idiom from Classical Chinese)
2. a deep fog (literally)
Pronunciation
orimujung
Examples3
The most common form of dementia is Alzheimer's, which makes up more than two-thirds of patients, but its cause was up in the air.
Ten days have passed since Kim [a minor] ran away from home, but his whereabouts remain very uncertain.
The disappointing verdict came that nothing was discernible due to excessive damage to the remains. With this, the dispute over Columbus's remains entered a state of uncertainty.