
https://www.google.co.uk/search?safe=active&source=hp&ei=MWxlXbqZLtGm1fAP2NGsQA&q=radical&oq=radical&gs_l=psy-ab.3..0l10.1306.3568..4557…0.0..0.68.442.7……0….1..gws-wiz…….0i131.EOJZU3heNPo&ved=0ahUKEwj69aixzaPkAhVRUxUIHdgoCwgQ4dUDCAc&uact=5
radical
/ˈradɪk(ə)l/
adjective
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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”
synonyms: thoroughgoing, thorough, complete, total, entire, absolute, utter, comprehensive, exhaustive, root-and-branch, sweeping, far-reaching, wide-ranging, extensive, profound, drastic, severe, serious, major, desperate, stringent, violent, forceful, rigorous, draconian “radical reform is long overdue”
noun
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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.
synonyms: revolutionary, progressive, reformer, revisionist; More -
2.CHEMISTRYa group of atoms behaving as a unit in a number of compounds.
