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radical

From Wiktionary
radical is on the Academic Word List.

Pronunciation

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Adjective

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Positive
radical

Comparative
more radical

Superlative
most radical

  1. A radical change, difference, etc. is very big and important; from the roots.
    The plan will not be easy and requires a radical change in the culture of the city.
    Many voices are calling for a more radical move away from the current situation.
  2. A radial idea, policy, etc. is one that is new and different; not standard.
    More radical organisations like Greenpeace and Friends of the Earth have brought attention to these issues.
    In a totalitarian society there is no more radical emotion than disbelief.
  3. (technical) Of or about a root (e.g., , the roots of plants, the root of a word, etc.)
  4. cool
    Dude, that outfit is rad!

Synonyms

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Antonyms

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Noun

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Singular
radical

Plural
radicals

  1. (countable) A radical is a person whose views are very different from most people.
    Leading radicals have called for a two-hour general strike on Monday.
    These were young radicals, overturning the post war consensus, rolling back the state, liberalising markets, and transforming the political economy.
  2. (countable) (mathematics) A quantity expressed as a root of another quantity. (e.g., )
  3. (countable) (chemistry) An atom or a group of atoms with at least one unpaired electron.
  4. (countable) (grammar) The basic part of a word to which other parts can be added (e.g., runner)
  5. (countable) A radical is one part of a Chinese or Japanese written character that can be combined with other parts to form a whole character.

Synonyms

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Antonyms

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