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'.
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.
She is a really trustworthy colleague.
Focuses on trustworthiness in terms of honesty, integrity, and keeping one's word. Often used in business or financial contexts.
That person is trustworthy.
Means 'sincere' and 'faithful', implying a deep, moral trustworthiness. Often used in formal or written contexts.
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.
This site is a trustworthy source of information.
Make decisions based on trustworthy data.
Means 'certain' or 'reliable'. Commonly used for information, evidence, or news.
Please only convey trustworthy information.
Also used for information, especially regarding its truthfulness.
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.
This car is trustworthy (reliable).
Build a trustworthy system.
Can be used for things in a slightly personified way, like a trusty tool.
This app is really trustworthy.
Means 'reassuring' or 'gives peace of mind'. Implies trustworthiness through a feeling of safety.
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.
He is a trustworthy boss (general reliability).
He is a trustworthy big-brother figure (dependable).
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.
He's always trustworthy when I'm in trouble.
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.
His report is trustworthy.