Synonym Nuance VS
How to say "Not" in Japanese
Both words can translate to "not", but which should you choose?
Japanese Option A
ぜんぜん
ぜんぜん (zenzen)
N5 / 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 ぜんぜん and いっさい.
In Japanese, ぜんぜん (ぜんぜん (zenzen)) is typically associated with "not at all, completely (used with negative verb)" (Syllabus Level: N5) and represents Adverb. Stronger negation than あまり.
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 "ぜんぜん"
私は日本語がぜんぜん分かりません。
I don't understand Japanese at all.
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: "私は日本語が ＿＿＿ 分かりません。" (Meaning: "I don't understand Japanese at all.")
🎉 Correct Answer!
Remember: "ぜんぜん" fits here because it means "not at all, completely (used with negative verb)" in the context of: "I don't understand Japanese at all.". "いっさい" represents "(not) at all, absolutely (not), entirely (without)".