Word · 単語
前代未聞
Reading ぜんだいみもん
unheard-of
unheard-of · unprecedented · unparalleled in history (unparallelled) · record-breaking
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JLPT
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strokes
#17223
frequency
Not started
Mastered counts as known everywhere (frontier, map, extension) but never appears in the quiz again. New wipes the review history for this item.
例文 · examples
犯人を弁護してた弁護士が実は真犯人だったなんて、前代未聞だ。
It's totally without precedent for the suspect's attorney to be the true culprit.