副詞・程度N5
ぜんぜん〜ない
not at all
Structure
ぜんぜん + V-ない / Adj-くない
Explanation
Used with negative for complete negation. ぜんぜん+negative = not at all. In casual youth speech, also used affirmatively = "totally".
Examples
この料理はぜんぜん辛くないです。
This dish is not spicy at all.
英語がぜんぜんわかりません。
I don't understand English at all.
Note
ぜんぜん=complete negation (stronger than あまり). Youth slang: ぜんぜん大丈夫 = totally fine (informal).