Meaning and Usage
「とんでもない」 is a versatile expression used both to describe something outrageous or absurd and as a humble response to thanks or praise. When used to describe a situation or action, it means "outrageous," "unthinkable," or "absurd." When used as a reply to gratitude, it means "not at all" or "you're welcome," showing modesty.
Common Collocations
- とんでもないこと: an outrageous or unthinkable thing
- とんでもない誤解: a ridiculous misunderstanding
- とんでもないです／とんでもない: polite humble response to thanks
Usage Notes
When used to deny thanks, it is a polite and humble way to deflect praise, often heard in formal or everyday polite conversation. When describing events or actions, it carries a strong negative judgment, so use it carefully to avoid offending.
Common Mistakes
Learners sometimes confuse the humble response use with the meaning of "outrageous." Context is key: if someone thanks you, replying with とんでもない means "not at all," but if you say とんでもないこと happened, it means "something outrageous happened."