Synonyms for radical
ˈræd ɪ kəlrad·i·cal

English Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. radical

   The widely divergent senses in which the word radical is used, by which it can be at some time interchanged with any word in the above list, are all formed upon the one primary sense of having to do with or proceeding from the root (Latin radix); a radical difference is one that springs from the root, and is thus constitutional, essential, fundamental, organic, original; a radical change is one that does not stop at the surface, but reaches down to the very root, and is entire, thorough, total; since the majority find superficial treatment of any matter the easiest and most comfortable, radical measures, which strike at the root of evil or need, are apt to be looked upon as extreme.

   Synonyms:
   complete, constitutional, entire, essential, extreme, fundamental, ingrained, innate, native, natural, organic, original, perfect, positive, primitive, thorough, thoroughgoing, total

   Antonyms:
   conservative, inadequate, incomplete, moderate, palliative, partial, slight, superficial, tentative, trial

Complete Dictionary of Synonyms and AntonymsRate these synonyms:0.0 / 0 votes

1. radical

   Synonyms:
   original, fundamental, thoroughgoing, unsparing, extreme, entire, innate, natural, essential, immanent, ingrained, underived, deep-seated

   Antonyms:
   derived, ascititious, adventitious, superficial, extraneous, partial, moderate, conservative, acquired

Princeton's WordNetRate these synonyms:1.0 / 1 vote

1. group, radical, chemical groupnoun

   (chemistry) two or more atoms bound together as a single unit and forming part of a molecule

   Synonyms:
   root, theme, root word, free radical, grouping, mathematical group, base, chemical group, group, stem

   Antonyms:
   moderate, cauline, old, incidental, incident

2. free radical, radicalnoun

   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

   "in the body free radicals are high-energy particles that ricochet wildly and damage cells"

   Synonyms:
   root, theme, root word, free radical, base, chemical group, group, stem

   Antonyms:
   old, incidental, cauline, moderate, incident

3. radicalnoun

   a person who has radical ideas or opinions

   Synonyms:
   root, theme, root word, free radical, base, chemical group, group, stem

   Antonyms:
   incident, old, moderate, incidental, cauline

4. radicalnoun

   (mathematics) a quantity expressed as the root of another quantity

   Synonyms:
   root, theme, root word, free radical, base, chemical group, group, stem

   Antonyms:
   incidental, incident, old, moderate, cauline

5. radicalnoun

   a character conveying the lexical meaning of a logogram

   Synonyms:
   root, theme, root word, free radical, base, chemical group, group, stem

   Antonyms:
   cauline, moderate, incidental, old, incident

6. root, root word, base, stem, theme, radicaladjective

   (linguistics) the form of a word after all affixes are removed

   "thematic vowels are part of the stem"

   Synonyms:
   al-Qaeda, idea, groundwork, al-Qaida, ascendent, base, substructure, composition, paper, fundament, motif, prow, theme, ascendant, basis, group, understructure, shank, stalk, nucleotide, report, foundation, etymon, root, subject, floor, bow, fore, topic, free radical, melodic theme, source, ancestor, foot, antecedent, musical theme, infrastructure, alkali, cornerstone, origin, pedestal, home, rootage, tooth root, stem, base of operations, radix, root word, stand, stem turn, solution, beginning, chemical group, al-Qa'ida, bag

   Antonyms:
   old, moderate, cauline, incidental, incident

7. extremist, radical, ultraadjective

   (used of opinions and actions) far beyond the norm

   "extremist political views"; "radical opinions on education"; "an ultra conservative"

   Synonyms:
   revolutionary, ultra, basal, extremist

   Antonyms:
   old, incident, incidental, cauline, moderate

8. revolutionary, radicaladjective

   markedly new or introducing radical change

   "a revolutionary discovery"; "radical political views"

   Synonyms:
   revolutionary, ultra, rotatory, basal, extremist

   Antonyms:
   cauline, moderate, old, incidental, incident

9. radicaladjective

   arising from or going to the root or source

   "a radical flaw in the plan"

   Synonyms:
   revolutionary, ultra, basal, extremist

   Antonyms:
   incidental, cauline, old, moderate, incident

10. radicaladjective

    of or relating to or constituting a linguistic root

    "a radical verb form"

    Synonyms:
    revolutionary, ultra, basal, extremist

    Antonyms:
    old, cauline, incident, moderate, incidental

11. radical, basaladjective

    especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem

    "basal placentation"; "radical leaves"

    Synonyms:
    revolutionary, base, ultra, basal, extremist, primary

    Antonyms:
    moderate, incident, cauline, incidental, old

Matched Categories

1. • Atom
   • Botany
   • Character
   • Chemistry
   • Linguistics
   • Mathematics
   • Measure
   • Person
   • Unit

Editors ContributionRate these synonyms:0.0 / 0 votes

1. extreme or progressive section

   Submitted by anonymous on April 6, 2021  

Dictionary of English SynonymesRate these synonyms:1.0 / 1 vote

1. radicaladjective

   Synonyms:
   original, fundamental, organic, constitutional

2. radicaladjective

   Synonyms:
   primitive, underived, uncompounded, simple

3. radicaladjective

   Synonyms:
   thorough, entire, complete, perfect

4. radicalnoun

   Synonyms:
   come-outer, radical reformer

5. radicalnoun

   Synonyms:
   primitive letter

6. radicalnoun

   Synonyms:
   root, radix, etymon, primitive word

7. radicalnoun

   Synonyms:
   (Chem.) base

Synonyms, Antonyms & Associated WordsRate these synonyms:0.0 / 0 votes

1. radicaladjective

   Synonyms:
   original, fundamental, extreme, thorough-going, primitive

   Antonyms:
   conservative, moderate, slight, trifling, derivative

2. radicalnoun

   Synonyms:
   root, etymon, radix

PPDB, the paraphrase databaseRate these paraphrases:0.0 / 0 votes

1. List of paraphrases for "radical":

   radicals, drastic, extremist, sweeping, hardline, free-radical, dramatic, hard-line, root-and-branch, fundamental, extreme, profound, thorough, radicalism, extremists, root, far-reaching, hardliner, militant

How to pronounce radical?

How to say radical in sign language?

Usage in printed sourcesFrom: 

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Words popularity by usage frequency

How to use radical in a sentence?

1. James Davis:

   It is radical, particularly given the divisive climate that we're in right now and how polarized and factionalized the country is in many ways, but we want to focus on aggressively finding areas of common interest where we can make progress on some issues, even if we disagree on other issues.

2. Henry Cuellar:

   I'm one of the best fundraisers in Washington, and she outraised me. In ordinary times, that wouldn't have happened, over the course of the last two elections, radical special interest groups spent over $10 million in an attempt to push their out-of-touch, New York values on Texans. But you, the voters, stopped them.

3. Former Pennsylvania Sen. Rick Santorum:

   By taking in persecuted Christians, Jews, and moderate Muslims, we are complicit in helping ISIS accomplish their goal of establishing an Islamic caliphate, without Christians, Jews, or moderate Muslims in the region, radical Islam will be allowed to run rampant.

4. Waleed Shahid:

   It reminds me of some of the attacks against Barack Obama for being connected to the Weather Underground and Black nationalists and Palestinian activists -- that View Trump was some sort of radical, it wasn't effective then and I don't think it will be effective now.

5. Carrie Lam:

   The radical behavior of rioters took Hong Kong through a very dark night, leaving society today half-paralyzed, the extreme violence clearly illustrated that Hong Kong's public safety is widely endangered. That's the concrete reason that we had to invoke emergency law yesterday to introduce the anti-mask law.