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翻訳　日本語　英語: 未知数

辞書: main
未知数
名詞
1 alien, stranger, terra incognita, unknown, unknown quantity, unknown region.
2 capriciousness, unpredictability, volatility.
3 excitability, excitableness, unpredictability, volatility.
4 precariousness, uncertainness, uncertainty, unknown, unknown quantity.
5 unknown, unknown quantity, unpredictability, volatility.