(まちが)いない

まちがいない
expression
certain; no doubt; unmistakable
1. certain; no doubt; unmistakable; for sure
An expression used to assert certainty about something. Literally means 'there is no mistake.' Used to confirm facts or express strong conviction.
これは本物(ほんもの)間違(まちが)いない。
This is definitely the real thing.
(かれ)犯人(はんにん)間違(まちが)いないと(おも)う。
I think he is without a doubt the culprit.
あの(みせ)のラーメンは間違(まちが)いなく美味(おい)しいから、一度(いちど)()ってみて。
The ramen at that shop is definitely delicious, so try going there once.

USAGE:
間違(まちが)いない is used in two main patterns:
1. Noun + に間違(まちが)いない — asserting that something is certainly X
2. 間違(まちが)いなく + predicate — used as an adverb meaning "definitely" or "certainly"

The expression can follow verbs and adjectives in plain form, or nouns with に.

COMMON PATTERNS:

  • …に間違(まちが)いない (it is certainly…)
  • 間違(まちが)いなく (definitely, certainly — adverbial form)

SIMILAR WORDS:

  • (たし)かに: "certainly" — acknowledges something but often introduces a contrasting point
  • きっと: "surely" — expresses expectation or prediction
  • (うたが)いない: "beyond doubt" — more formal and literary