不翼而飞

búyì’érfēi
to disappear without trace, to vanish all of a sudden
HSK 79
Traditional不翼而飛

Additional Dictionary Meanings

to disappear without traceto vanish all of a suddento spread fastto spread like wildfire

Characters (4)

不not, noHSK 1翼liǎngyìHSK 79而but, and, yetHSK 3飞to flyHSK 1