máng​rán HSK7

at a loss

茫然 máng​rán
at a loss adjective
feeling confused, ignorant, or uncertain about how to proceed

Faced with this sudden turn of events, he felt completely bewildered.

blankly adjective
showing a vacant or expressionless appearance, often due to shock or deep thought

He stared blankly out the window as if deep in thought.

Frequency

Movie subtitles
1.70 per million appears in 1% of films
Written text
6.81 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 7

Sources

Definitions
CC-CEDICT