Meaning
To be completely ignorant about a subject.
Cultural Background
Students often use this phrase to bond over the difficulty of a subject. Admitting you are 'ни в зуб ногой' before an exam is a common ritual to lower stress. Many beloved movie characters are portrayed as being 'ни в зуб ногой' in modern life or technology, which makes them relatable to the audience. While informal, using this phrase about a colleague can be a serious (though whispered) criticism of their professional fitness. Older Russians often use this phrase to describe their relationship with modern gadgets like smartphones or social media.
Use for Humility
It's a great way to show you're not arrogant. If someone praises you for something you don't know, use this to stay humble.
Not for the Office
Don't use this with your boss unless you are very close. It can make you sound like you don't care about your job.
Meaning
To be completely ignorant about a subject.
Use for Humility
It's a great way to show you're not arrogant. If someone praises you for something you don't know, use this to stay humble.
Not for the Office
Don't use this with your boss unless you are very close. It can make you sound like you don't care about your job.
The 'В' Rule
Always remember the 'в' + Prepositional case. It's the most common mistake for learners.
Test Yourself
Complete the phrase with the correct words.
Я в этой теме ни в ___ ___.
The fixed idiom is 'ни в зуб ногой'.
Which sentence is grammatically correct?
Select the right usage:
We use 'в' + Prepositional case (математике).
Match the situation to the best response.
Your friend asks you to help fix their car, but you know nothing about cars.
This is the perfect informal way to admit you can't help because you lack the knowledge.
Fill in the missing part of the dialogue.
— Ты понимаешь, что говорит этот профессор? — Нет, я в его лекциях ___.
The context implies the person doesn't understand the professor.
🎉 Score: /4
Visual Learning Aids
Practice Bank
4 exercisesЯ в этой теме ни в ___ ___.
The fixed idiom is 'ни в зуб ногой'.
Select the right usage:
We use 'в' + Prepositional case (математике).
Your friend asks you to help fix their car, but you know nothing about cars.
This is the perfect informal way to admit you can't help because you lack the knowledge.
— Ты понимаешь, что говорит этот профессор? — Нет, я в его лекциях ___.
The context implies the person doesn't understand the professor.
🎉 Score: /4
Frequently Asked Questions
10 questionsNot inherently rude, but very informal. It's fine for friends, risky for strangers.
Yes, you can say 'Он ни в зуб ногой', but it's a bit critical.
No, it is a fixed idiom. Never say 'ногами'.
'Clueless' or 'Doesn't know the first thing about it'.
No, it always describes a lack of knowledge.
No, it's still very much in use by all ages today.
No, it's for subjects or skills, not for understanding people's feelings.
It's an absurd combination to show how 'far away' the person is from the truth.
Yes: 'Я в этом не разбираюсь' (I don't understand this).
Yes, very common for sports, math, and tech.
Related Phrases
ни бум-бум
synonymTo not understand a thing (very informal).
полный ноль
synonymA total zero.
смотреть как баран на новые ворота
similarTo look at something with total confusion.
разбираться как свинья в апельсинах
similarTo understand something as well as a pig understands oranges.
