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Synonym Nuance VS

How to say "Not" in Japanese

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

Japanese Option A

必ずしも

かならずしも (kanarazushimo)
N4 / CEFR Syllabus
VS
Japanese Option B

いっさい

いっさい (issai)
N2 / CEFR Syllabus

Nuance Contrast & Translation Difference

When translating "not" into Japanese, you must choose carefully between 必ずしも and いっさい. In Japanese, 必ずしも (かならずしも (kanarazushimo)) is typically associated with "not necessarily; not always (used with a negative predicate)" (Syllabus Level: N4) and represents Always followed by a negative expression. On the other hand, いっさい (いっさい (issai)) maps to "(not) at all, absolutely (not), entirely (without)" (Syllabus Level: N2) and represents Used with negative verbs to emphasize a complete lack or absence of something. Stronger than 全然. A literal translation of "not" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "必ずしも"
お金持ちが必ずしも幸せとは限りません。
Wealthy people are not necessarily happy.
Bilingual Context for "いっさい"
私はその件について、いっさい知りません。
I know absolutely nothing about that matter.

Nuance Mastery Quiz

Which Japanese word perfectly fits this blank space?

Fill in the blank: "お金持ちが ___ 幸せとは限りません。" (Meaning: "Wealthy people are not necessarily happy.")
🎉 Correct Answer!

Remember: "必ずしも" fits here because it means "not necessarily; not always (used with a negative predicate)" in the context of: "Wealthy people are not necessarily happy.". "いっさい" represents "(not) at all, absolutely (not), entirely (without)".

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