心急如焚

xīn jí rú fén

frantic with worry

Character by character

心xīn
heart

急jí
anxious

如rú
as if

焚fén
burning

航班一再延误，赶着开会的他心急如焚。

With the flight delayed again and a meeting to get to, he was frantic.

Tone: neutral.

Stronger and more written than 着急.

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