radical

英語（米国） (en-US) 英語（イギリス） (en-GB)

IPA（発音記号）

/ˈɹædɪkəl/

形容詞

比較不可 音声 俗語

very new and different from what is traditional

日本語の意味

急進的な / 革新的な / 抜本的な / 従来とは大きく異なる

英語の意味

very new and different from what is traditional

ラオ語（ラオス語）

ໃໝ່ແລະແຕກຕ່າງຈາກແບບເດີມຢ່າງຫຼາຍ / ປ່ຽນແປງຢ່າງຖອນຮາກຖອນໂຄນ / ສຸດຂົ້ວ

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The radical proposal to overhaul the education system sparked intense debate among policymakers.

教育制度の抜本的な見直しを提案する案は、政策決定者の間で激しい議論を巻き起こした。

詳細

意味（1）

Favoring fundamental change, or change at the root cause of a matter.

His beliefs are radical.

詳細

意味（2）

(botany, not comparable) Pertaining to a root (of a plant).

意味（3）

Pertaining to the basic or intrinsic nature of something.

The most determined exertions of that authority, against them, only showed their radical independence.

詳細

意味（4）

Thoroughgoing; far-reaching.

Phoenix and Lubbock are both caught in severe drought, and it is going to get much worse. We may see many such [dust] storms in the decades ahead, along with species extinctions, radical disturbance of ecosystems, and intensified social conflict over land and water. Welcome to the Anthropocene, the epoch when humans have become a major geological and climatic force.

詳細

意味（5）

(lexicography, not comparable) Of or pertaining to the root of a word.

意味（6）

(phonology, phonetics, not comparable, of a sound) Produced using the root of the tongue.

意味（7）

(chemistry, not comparable) Involving free radicals.

意味（8）

(mathematics) Relating to a radix or mathematical root.

a radical quantity; a radical sign

詳細

意味（9）

(slang, 1980s & 1990s) Excellent; awesome.

That was a radical jump!

詳細

more radical （ comparative ）

most radical （ superlative ）