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How to say "Not" in Japanese

Both words can translate to "not", but which should you choose?

Japanese Option A

間に合わない

まにあわない (maniawanai)
N4 / CEFR Syllabus
VS
Japanese Option B

到底

とうてい (tōtei)
N2 / CEFR Syllabus

Nuance Contrast & Translation Difference

When translating "not" into Japanese, you must choose carefully between 間に合わない and 到底. In Japanese, 間に合わない (まにあわない (maniawanai)) is typically associated with "to not be in time, to miss (an appointment/train etc.)" (Syllabus Level: N4) and represents The negative form of 間に合う. On the other hand, 到底 (とうてい (tōtei)) maps to "(not) possibly, (not) by any means, utterly" (Syllabus Level: N2) and represents This adverb is almost always used with negative verbs or expressions to emphasize the impossibility or extreme difficulty of something. It expresses that something cannot happen no matter what.. A literal translation of "not" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "間に合わない"
急がないと、電車に間に合わないかもしれません。
I might not make it in time for the train if I don't hurry.
Bilingual Context for "到底"
この荷物は一人では到底持ち上げられない。
This luggage cannot possibly be lifted by one person alone.

Nuance Mastery Quiz

Which Japanese word perfectly fits this blank space?

Fill in the blank: "急がないと、電車に ___ かもしれません。" (Meaning: "I might not make it in time for the train if I don't hurry.")
🎉 Correct Answer!

Remember: "間に合わない" fits here because it means "to not be in time, to miss (an appointment/train etc.)" in the context of: "I might not make it in time for the train if I don't hurry.". "到底" represents "(not) possibly, (not) by any means, utterly".

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