～に越したことはない

Japanese Grammar Advanced Japanese ★★★ 3/5 neutral にこしたことはないni koshita koto wa nai
Reading にこしたことはない
Romaji ni koshita koto wa nai
Formation Verb (plain form) + に越したことはない / い-Adj + に越したことはない / な-Adj + である + に越したことはない / Noun + である + に越したことはない
Kanji breakdown 越 — こす/こした (to surpass, to exceed)

Meaning

A phrase meaning 'nothing is better than' or 'it would be best to.' It expresses that a certain state or action is the most desirable, though not necessarily required.

に越したことはない indicates that while other options exist, the stated one is ideal or safest. It carries a tone of practical advice — suggesting the optimal choice without making it an absolute command. Unlike ほうがいい, which gives direct advice, に越したことはない implies there is no downside to the stated action. The preceding element can be a verb in plain form, an adjective, or a noun + である. It frequently appears in giving cautious recommendations: 'You don't have to, but if you can, this is the best option.' The nuance is mild and non-imposing, making it suitable for polite suggestions.

Examples

  1. 備えは早いに越したことはないので、今のうちに防災用品を揃えておこう。 There's nothing better than preparing early, so let's gather disaster supplies while we can.
  2. 健康診断は定期的に受けるに越したことはない。 It's best to get regular health checkups.
  3. 契約書は専門家に確認してもらうに越したことはない。 There's nothing better than having a specialist review the contract.

Usage Guide

Context: spoken, written, advice, everyday

Tone: advisory

Do Say

  • 海外旅行の前にビザの有効期限を確認するに越したことはない。
  • 仕事のデータはこまめにバックアップを取るに越したことはない。
  • 子どもの安全に関しては慎重であるに越したことはない。

Don't Say

  • 宝くじに当たるに越したことはない。(Using に越したことはない for events outside one's control — it implies a recommended action or achievable state, not wishful thinking) → 貯金は多いに越したことはない。
  • 毎日十二時間勉強するに越したことはない。(Recommending something unreasonable — に越したことはない suits realistic, practical advice) → 試験前は計画的に勉強するに越したことはない。

Origin & History

Composed of に越した (surpassed) + ことはない (there is no such thing). Literally 'there is nothing that surpasses this,' it evolved into an expression meaning 'nothing beats' or 'it's best to.'

Cultural Context

Generation: All ages

Social background: Universal

Related Phrases

～によると・によれば A compound particle used to identify the source of information being reported. It means 'according to' and introduces hearsay or reported facts from a specific source. ～に向けて・に向けた A compound particle indicating the destination, direction, or target of an action. に向けて means 'aimed at' or 'toward' (adverbial), while に向けた modifies a noun as 'directed at' or 'targeted at.' ～に決まっている A phrase expressing the speaker's strong conviction or certainty about something. It means 'it is certain that,' 'there is no doubt that,' or 'of course.' ～に（も）なく A phrase meaning that something unusual happens or someone does something out of character. It is often used in the set form ～にもなく to mean 'uncharacteristically' or 'unusually for.' ～に/ともなると A phrase used when something or some situation is perceived as reaching a special or significant level. It means 'when it comes to (something of that level)' or 'once you reach the point of.' ～にしても A conjunction meaning 'even if,' 'even though,' or 'granting that.' It acknowledges a premise and then introduces a consequence, judgment, or condition that holds regardless. ～にしろ・にせよ A conjunctive phrase expressing concession, meaning 'even if,' 'whether...or,' or 'granting that.' It presents a hypothetical or acknowledged condition while asserting that the main point still holds. ～にとどまらず A phrase meaning 'not limited to' or 'going beyond.' It indicates that something exceeds a certain boundary, scope, or expectation and extends further.
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