máng​máng​rán

at a loss

茫茫然 máng​máng​rán
at a loss
describes being in a daze, utterly ignorant, or in the dark about a situation
absent-mindedly
describes a state of being lost in thought, aimless, or appearing dazed due to disappointment or frustration

Frequency

Movie subtitles
0.030 per million appears in 0% of films

Sources

Frequency data
SUBTLEX-CH