ぽかん

also: ぱかん

ぽ

か

ん

Meanings

Describes a state of mental absence or distraction, often with a blank facial expression. Commonly used with する or と.

Describes a shocked or stunned state where one's mouth hangs open. Often used with する or と.

Mimetic sound for a light, hollow impact, such as hitting a wooden surface. Less common than the mental-state senses.

ぽかんとするto space out; to stare blankly
彼かれは急きゅうに話はなしかけられて、しばらくぽかんとしていた。
He was suddenly spoken to and stood there blankly for a moment.
口くちを〈形けい容よう詞し〉ぽかんと開あけるto gape with one's mouth hanging open
その光こう景けいを見みて、子こ供どもたちは口くちをぽかんと開あけた。
Seeing the sight, the children gaped with their mouths hanging open.
ぽかんとした顔かおa blank or dumbfounded look on one's face
彼かの女じょはぽかんとした顔かおでこちらを見みていた。
She was looking this way with a blank expression on her face.
ぽかんと立たつto stand there vacantly, lost in thought
彼かれは道みちの真まん中なかでぽかんと立たっていた。
He stood vacantly in the middle of the road.

ぼんやりN3sense 1
ぼんやり describes a longer, hazier state of distraction, while ぽかん suggests a sudden, momentary blankness, often with a visibly slack expression.
あんぐり sense 2
あんぐり and ぽかん both describe a mouth hanging open in shock, but あんぐり focuses purely on the gaping mouth while ぽかん also covers general blank surprise.
きょとんN1
きょとん describes a brief, wide-eyed look of puzzlement, while ぽかん suggests a more prolonged, open-mouthed daze.

母ぼ艦かん
ぽかん describes a blank or gaping expression, while the similar-sounding ぼかん is a mimetic word for a loud bang or explosion sound.

ぽかんUsage57%
Standard hiragana spelling for the mimetic adverb.
ポカンUsage41%
Katakana variant, often used for emphasis or in informal writing.
ぱかんUsage1%
Rare variant reading for the impact sense; may be encountered in manga or casual writing.
パカンUsage1%
Katakana variant of the rare reading ぱかん, used for the impact sense.

Mimetic word; the exact origin is uncertain, but it imitates a hollow sound or a state of emptiness.