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1. Dictionary

   radical

   /ˈradɪkl/

   adjective

   • 1. (especially of change or action) relating to or affecting the fundamental nature of something; far-reaching or thorough: "a radical overhaul of the existing regulatory framework" Similar thoroughgoingthoroughcompletetotalentireabsoluteuttercomprehensiveexhaustiveroot-and-branchsweepingfar-reachingwide-rangingextensiveprofounddrasticsevereseriousmajordesperatestringentviolentforcefulrigorousdraconianOpposite superficial
   • ▪ forming an inherent or fundamental part of the nature of someone or something: "the assumption of radical differences between the mental attributes of literate and non-literate peoples" Similar fundamentalbasicessentialquintessentialinherentinnatestructuraldeep-seatedintrinsicorganicconstitutiverootOpposite minor
   • ▪ (of surgery or medical treatment) thorough and intended to be completely curative.
   • 2. advocating or based on thorough or complete political or social change; representing or supporting an extreme or progressive section of a political party: "a radical activist" Similar revolutionaryprogressivereformingreformistprogressivistrevisionistleftistleft-wingsocialistanti-capitalistextremistfanaticalmilitantdiehardinformal:wokeright-oninformal, derogatory:commieBolshevikleftyredpinkbolshieOpposite conservativereactionarymoderate
   • ▪ belonging to an extreme section of the Liberal party during the 19th century. historical British
   • ▪ characterized by independence of or departure from tradition; innovative or unorthodox: "the daring, avant-garde spirit of the music was too radical for the conservative audience"
   • 3. denoting or relating to the roots of a word.
   • ▪ belonging to the root of a chord.
   • 4. relating to or forming the root of a number or quantity.
   • 5. of, or springing direct from, the root or stem base of a plant.
   • 6. very good; excellent: informal North American "Okay, then. Seven o'clock. Radical!"

   noun

   • 1. a person who advocates thorough or complete political or social change, or a member of a political party or section of a party pursuing such aims.
   • 2. a group of atoms behaving as a unit in a number of compounds.
   • 3. the root or base form of a word.
   • ▪ any of the basic set of approximately 214 Chinese characters constituting semantically or functionally significant elements in the composition of other characters and used as a means of classifying characters in dictionaries.
   • 4. a quantity forming or expressed as the root of another.
   • ▪ a radical sign.

   Word Origin late Middle English (in the senses ‘forming the root’ and ‘inherent’): from late Latin radicalis, from Latin radix, radic- ‘root’.

   Derivatives

   • 1. radicalness noun

   Scrabble Points: 10

   • R

     1

   • A

     1

   • D

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   • I

     1

   • C

     3

   • A

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   • L

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   More definitions, origin and scrabble points

2. www.merriam-webster.com › dictionary › radicalRadical Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › radical

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   Learn the origin, synonyms, examples, and usage of the word radical as an adjective and a noun. Find out how radical can mean a root, a principle, an extreme, a political activist, or a mathematical expression.

3. dictionary.cambridge.org › dictionary › englishRADICAL | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   Learn the meaning of radical as an adjective, noun, and medical term. Find out how to use radical in sentences and phrases related to social, political, or economic change, or surgery.

4. Videos

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5. www.dictionary.com › browse › radicalRADICAL Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › radical

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   extreme, especially as regards change from accepted or traditional forms: a radical change in the policy of the company. Synonyms: violent, immoderate, excessive, drastic, thorough, unqualified, complete. Antonyms: superficial. favoring drastic political, economic, or social reforms: radical ideas;

6. www.vocabulary.com › dictionary › radicalRadical - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › radical

   noun. an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule. synonyms: free radical. see more.

7. dictionary.cambridge.org › english › radicalRADICAL | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › english › radical

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   Learn the meaning of radical as an adjective, noun and surgical term, with examples and synonyms. Find out how to pronounce radical and translate it in different languages.

8. www.thefreedictionary.com › radicalRadical - definition of radical by The Free Dictionary

   www.thefreedictionary.com › radical

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   Radical can mean a root, a group of atoms, a slang term, or a political activist. Learn the different meanings and usage of radical in various contexts with examples and synonyms.

9. www.collinsdictionary.com › dictionary › englishRADICAL definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   of or going to the root or origin; fundamental. a radical difference. 2. thoroughgoing or extreme, esp. as regards change from accepted or traditional forms. a radical change in the policy of a company. 3. favoring drastic political, economic, or social reforms. radical ideas. radical and anarchistic ideologues.