事 実 無 根(じじつむこん)

じじつむこん

noun, na-adjective

completely groundless; utterly unfounded; baseless

communication law

1. completely groundless; utterly unfounded; baseless

describes a claim, rumor, or accusation that has absolutely no basis in fact

その噂(うわさ)は事実無根(じじつむこん)だ。

That rumor is completely groundless.

事実無根(じじつむこん)の報道(ほうどう)に対(たい)して抗議(こうぎ)した。

I protested against the baseless reporting.

弁護士(べんごし)は「依頼人(いらいにん)に対(たい)する告発(こくはつ)は事実無根(じじつむこん)である」と声明(せいめい)を出(だ)した。

The lawyer issued a statement saying the accusations against his client are utterly unfounded.

A formal four-character compound (四字熟語(よじじゅくご)) frequently used in news, legal contexts, and public denials. It is a strong, emphatic way to deny something — stronger than simply saying 嘘(うそ) (lie) because it asserts a complete absence of factual basis.

Common collocations

事実無根(じじつむこん)の噂(うわさ): a baseless rumor
事実無根(じじつむこん)の報道(ほうどう): groundless reporting
事実無根(じじつむこん)であると主張(しゅちょう)する: to claim something is groundless
事実無根(じじつむこん)の誹謗中傷(ひぼうちゅうしょう): baseless slander

Similar words

根拠(こんきょ)がない: has no basis — simpler and less formal
根(ね)も葉(は)もない: completely unfounded — idiomatic, used in conversation
荒唐無稽(こうとうむけい): absurd, preposterous — emphasizes ridiculousness rather than falsehood
濡(ぬ)れ衣(ぎぬ): false accusation — focuses on being wrongly blamed

Etymology

事実(じじつ) (fact) + 無根(むこん) (without root/basis). Literally: "fact-rootless" — there is no factual root to the claim.

Related Words

Compare: 根(ね)も葉(は)もない (completely unfounded)

Compare: 荒唐無稽(こうとうむけい) (absurd, preposterous)

general

Added 2026.5.5 21:12 · Revised 2026.9.2 13:02

26500/26816_jijitsumukon