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Etymology data from Wiktionary via Wiktextract (CC BY-SA 4.0). Chinese character data from the 說文解字, the Taiwan MOE 國語辭典簡編本 (CC BY-ND 3.0 TW) and HSK/TOCFL lists.

Explanations are written by a local model (gemma4) and only published after a verification pass against the cited sources. How it works.

Chinese

不得而知

/pu⁵¹ tɤ³⁵ ˀɤɻ³⁵ ʈ͡ʂɻ̩⁵⁵/
to be unable to know or find out; to remain unknown; to be unable to ascertain
  • HSK 10
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The phrase describes a state where knowledge cannot be obtained, much like a scholar facing a silent, inscrutable monument.
The phrase describes a state where knowledge cannot be obtained, much like a scholar facing a silent, inscrutable monument.

Origin

The phrase 不得而知 is formed by combining four characters. The character 不 means not, un-, in-, il-, im-, or ir-. The character 得 means to get, to obtain, to gain, or to acquire. The character 而 serves as a conjunction to connect two clauses or adjectives. The character 知 means to know, to understand, or to comprehend.

The character 知 is composed of the elements 大 (of great size, big, large, or huge), 口 (mouth, especially the lips and internal mouth cavity), and 子 (child, offspring, or descendant). According to the MOE Dictionary, the phrase indicates being without a way to know.

Confidence: high · written by gemma4:26b, checked statement-by-statement against the sources below.

「不得而知」由四個中文字組成。其中「不」表示否定；「得」意指獲得、得到或取得；「而」作為連接詞，用以連接兩個子句或形容詞；「知」則表示知道、理解或領悟。

在字形結構上，「知」字包含了「大」、「口」與「子」三個組成部分。根據相關資料，「大」代表巨大或大型，「口」指口部（特別是嘴唇與口腔內部），而「子」則指小孩或後代。

Confidence: high · written by gemma4:26b, checked statement-by-statement against the sources below.

Lineage

  • characterChinese不 “not; un-; in-; il-; im-; ir-”
  • characterChinese得 “to get; to obtain; to gain, to acquire”
  • characterChinese而 “and (used to connect two clauses or adjectives)”
  • characterChinese知 “to know; to understand; to comprehend”
    • ideaChinese大 “of great size; big; large; huge”
    • ideaChinese口 “mouth, especially the lips and internal mouth cavity (Classifier: 把 c)”
    • ideaChinese子 “child; offspring; descendant”
Wiktionary etymology text

No etymology text yet. The graph shows what is known from the sources.

Meanings

phrase
  1. to be unable to know or find out; to remain unknown; to be unable to ascertain

國語辭典 definitions

  1. 無從知道。 例：這件事他會怎麼處理，我們就不得而知了。

© Ministry of Education, Taiwan — CC BY-ND 3.0 TW, shown unaltered.

Sources

  • etymagent (local gemma4:26b) — Generated
  • HSK / TOCFL word lists — Facts (levels)
  • 教育部《國語辭典簡編本》 (Taiwan MOE) — CC BY-ND 3.0 TW
  • Written form — n/a
  • Wiktionary (via Wiktextract / kaikki.org) — CC BY-SA 4.0