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愣頭愣腦

简愣头愣脑 · 繁愣頭愣腦

Mandarin · pinyin lèng tóu lèng nǎo

rash
impetuous
reckless

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Characters in this entry

愣: lèng · be in a daze
頭: tóu · head; top; chief, first; boss
腦: Look up this written character
头: tóu · head; top; chief, first; boss
脑: nǎo · brain

Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

4–2–4–3 · leng4 tou2 leng4 nao3

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Read this spelling in Classical texts

Follow a written form into the eight pinned witnesses: Analects, Mencius, Laozi, Zhuangzi, Xunzi, Han Feizi, Sunzi and the Mao Shijing. A match is a place to investigate; it does not prove that a modern dictionary sense fits the passage.

愣頭愣腦 · find source passages ↗ · 愣头愣脑 · find source passages ↗

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Compare dictionary sources Wiktionary · 2 senses · 1 Cantonese reading

Rime Cantonese 粵拼

ling6 tau4 ling6 nou5

Cantonese word readings for 愣頭愣腦. This lexicon supplies readings, not definitions.

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Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

phrase

(idiomatic) rash; hotheaded; reckless
(idiomatic) slow in movement; obtuse; stunned

Source page · dump 2026-09-02 · Contributors & history

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