How to say "dependable" in Japanese

• 頼もしいたのもしいJLPT N2approx.Common
  i-adjectiveCovers the core sense of 'dependable' for people: someone you can rely on and trust, often with a warm, reassuring feeling. Typical context: praising a reliable colleague or friend you can count on.
  彼かれは頼たのもしい男おとこだ。↗

  He is a man to be depended on.
• 間違いないまちがいないCommon
  expression, i-adjectiveReally means 'certain, sure, without mistake', so it fits 'dependable' mainly for things — information, a source, or a prediction you can be sure of — rather than for praising a person's character.

Choose 「頼もしい」 for the core sense of a dependable, trustworthy person whose reliability is reassuring; choose 「間違いない」 when you mean certain or sure — dependable in the sense of guaranteed to be correct.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 頼もしいたのもしいreliable
• 当てになるあてになるreliable
• 信頼に足るしんらいにたるauthentic
• 間違いないまちがいないreliable
• 強いつよいdependable