설명되거나 명확하게 밝혀지지 않은
Not described, clarified, or made known to others.
예문:
"The sudden change in the project timeline remained unexplained by the management."
"She left the room for an unexplained reason, leaving everyone confused."
확인된 원인이나 과학적 근거로 해명되지 않은
Not accounted for by an identified cause or scientific reason.
예문:
"The patient suffered from unexplained weight loss over the past few months."
"Astronomers are investigating an unexplained signal coming from a distant galaxy."