Translation guide
Describes a person, source, or thing that can be relied on as honest, accurate, or dependable. Japanese expresses this through adjectives, verbs, and set phrases that emphasize reliability, credibility, and the feeling of being able to trust.
To say someone is dependable, keeps promises, and can be trusted in character.
The most direct and common way to say 'trustworthy' for a person. It literally means 'can be trusted/reliable'.
彼はとても信頼できる人です。
He is a very trustworthy person.
I'm looking for a trustworthy friend.
Emphasizes that someone is dependable and you can count on them. Slightly more casual and warm than 信頼できる.
彼女は本当に頼りになる同僚だ。
She is a really trustworthy colleague.
困ったときはいつも頼りになる。
He's always trustworthy when I'm in trouble.
Focuses on trustworthiness in terms of honesty, integrity, and keeping one's word. Often used in business or financial contexts.
あの人は信用できる。
That person is trustworthy.
信用できる情報かどうか確認してください。
Please check whether it's trustworthy information.
Means 'sincere' and 'faithful', implying a deep, moral trustworthiness. Often used in formal or written contexts.
彼は誠実な人柄で知られている。
He is known for his trustworthy character.
To say that data, news, a website, or a report can be trusted to be correct.
Works for both people and information. Very versatile.
このサイトは信頼できる情報源です。
This site is a trustworthy source of information.
信頼できるデータに基づいて判断する。
Make decisions based on trustworthy data.
Means 'certain' or 'reliable'. Commonly used for information, evidence, or news.
確かな情報だけを伝えてください。
Please only convey trustworthy information.
彼の報告は確かなものだ。
His report is trustworthy.
Also used for information, especially regarding its truthfulness.
そのニュースは信用できる。
That news is trustworthy.
To say that a product, machine, or method works reliably and won't fail.
A common phrase meaning 'high reliability'. Used for products, systems, and technology.
この車は信頼性が高い。
This car is trustworthy (reliable).
信頼性の高いシステムを構築する。
Build a trustworthy system.
Can be used for things in a slightly personified way, like a trusty tool.
このアプリは本当に頼りになる。
This app is really trustworthy.
Means 'reassuring' or 'gives peace of mind'. Implies trustworthiness through a feeling of safety.
このセキュリティシステムは安心できる。
This security system is trustworthy (gives peace of mind).
信頼できる is the most general and formal. 頼りになる is warmer and implies you can lean on someone. 信用できる focuses on honesty and not betraying trust, often used in business.
彼は信頼できる上司だ。
He is a trustworthy boss (general reliability).
彼は頼りになる兄貴分だ。
He is a trustworthy big-brother figure (dependable).
彼は信用できる取引相手だ。
He is a trustworthy business partner (honest).
Do not directly translate 'trustworthy' as 信頼する価値がある or similar. It sounds unnatural. Use the adjective phrases above.