radical

/ˈrædɪkəl/

意味: 急進主義者

例文: The radical led a protest march.
　　  急進主義者が抗議行進を率いた。

言葉のよくある組み合わせ: radical change(急激な変化), radical idea(急進的な考え), radical reform(抜本的な改革)

定義: 何かを根本的に変えたり、非常に新しい考え方を持っていることを指します。政治や社会の変化において、従来の方法を大きく変えることを意味します。また、化学では分子の一部を指すこともあります。

radicalは約50,000語に1回程度の頻出度です。

口語性、形式性、抽象度、感情度 - 横向き棒グラフ

水平グラフ: 会話での使われやすさ、フォーマル度、抽象度（具体・概念）、感情度を示します。数値が高いほど、その特徴が強いことを表します。

感情分析 レーダーチャート

感情グラフ: 怒り、期待、嫌悪、恐れ、喜び、悲しみ、驚き、信頼、ポジティブ、ネガティブの強さを示します。

Definitions(定義)

Noun: (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
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
Noun: a person who has radical ideas or opinions
Noun: (mathematics) a quantity expressed as the root of another quantity
Noun: a character conveying the lexical meaning of a logogram
Noun: (linguistics) the form of a word after all affixes are removed
Adjective: (used of opinions and actions) far beyond the norm
Adjective: markedly new or introducing radical change
Adjective: arising from or going to the root or source
Adjective: of or relating to or constituting a linguistic root
Adjective: 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

Parts of Speech(品詞)

Noun, Adjective

Examples(例文)

感情分析に使用された例文：

The scientist proposed a radical new theory.(その科学者は根本的な新理論を提案した。)
She made a radical change to her lifestyle.(彼女は生活様式に抜本的な変化を加えた。)
They support radical ideas for social reform.(彼らは社会改革のための急進的な考えを支持している。)

 

Word Netから抽出した例文：

Noun: in the body free radicals are high-energy particles that ricochet wildly and damage cells
Noun: thematic vowels are part of the stem
Adjective: extremist political views
Adjective: radical opinions on education
Adjective: an ultra conservative
Adjective: a revolutionary discovery
Adjective: radical political views
Adjective: a radical flaw in the plan
Adjective: a radical verb form
Adjective: basal placentation
Adjective: radical leaves

Synonyms/Antonyms(類語/反意語)

Synonyms(類語): basal, base, chemical group, extremist, free radical, group, radical, revolutionary, root, root word, stem, theme, ultra

Antonyms(反意語): cauline

Hypernyms/Hyponyms(上位語/下位語)

Hypernyms (General categories)(上位語): atom, character, form, measure, person, unit

Coordinate Terms(同じ上位語をもつもの): abator, abbreviation, abjurer, abomination, abstainer, achiever, acquaintance, acquirer, acronym, active, actor, adjudicator, admirer, adoptee, adult, adventurer, adversary, advisee, advocate, affiant, african, agnostic, allograph, amateur, amerindian, ancient, anomaly, anti, anti-american, applicant, appointee, appreciator, apprehender, aquarius, archaist, aries, arrogator, ascii character, assessee, asterisk, asthmatic, authority, autodidact, baby boomer, baby buster, bad guy, bad person, baldhead, balker, bather, beard, bedfellow, bereaved, best, birth, biter, black, blogger, blond, bluecoat, bodybuilder, bomber, brunet, bullfighter, buster, cancer, candidate, capital, capitalist, capricorn, captor, carbon atom, case, cashier, celebrant, censor, chain, chameleon, changer, charmer, check character, child, chutzpanik, citation form, closer, clumsy person, collector, color-blind person, combatant, commoner, communicator, complexifier, compulsive, computer user, contemplative, contestant, convert, copycat, cordage, counter, counterterrorist, couple, coward, crawler, creator, creature, creditor, cripple, dagger, dancer, dead person, deaf person, debaser, debtor, defecator, definite quantity, delayer, deliverer, demander, dieter, differentiator, disentangler, disputant, dissenter, divider, domestic partner, double, double dagger, dresser, dribbler, drug user, dyslectic, ectomorph, effecter, elizabethan, emotional person, endomorph, engineer, enjoyer, enrollee, entertainer, ethnic, etymon, experimenter, expert, explorer, extrovert, face, faddist, faller, fastener, female, fiduciary, first-rater, follower, free agent, free radical, friend, fugitive, fundamental quantity, gainer, gambler, gatekeeper, gatherer, gemini, gentile, ghost word, good guy, good person, granter, greeter, grinner, groaner, group, grunter, guesser, handicapped person, hater, heterosexual, homosexual, homunculus, hope, hoper, huddler, hugger, hydrogen atom, ideogram, immune, indefinite quantity, individualist, inhabitant, innocent, insured, intellectual, interpreter, introvert, isotope, jat, jew, jewel, jumper, junior, juvenile, killer, kink, kneeler, knocker, knower, large person, latin, laugher, leader, learner, left-hander, leo, letter, libra, life, ligature, lightning rod, linguist, literate, liver, longer, loose cannon, loved one, lover, machine, magnetization, mailer, malcontent, male, man, man jack, manipulator, married, masturbator, mathematical symbol, measurer, mesomorph, mestizo, middlebrow, miracle man, misogamist, mixed-blood, modern, molecule, monad, money handler, monolingual, mother hen, mouse, mutilator, namer, namesake, national, native, neglecter, neighbor, neutral, nondescript, nonmember, nonparticipant, nonpartisan, nonperson, nonreligious person, nonresident, nonsmoker, nonworker, nude, nurser, occultist, octane number, optimist, orphan, ostrich, ouster, outcaste, outdoorsman, owner, pamperer, pansexual, pardoner, partner, party, passer, peer, perceiver, percent sign, percher, person of color, personage, personification, perspirer, philosopher, phonetic symbol, picker, pictograph, pisces, pisser, planner, player, playing period, plural, point, posturer, powderer, precursor, preserver, primitive, probability, proof, propositus, public relations person, pursuer, pussycat, quantum, quarter, quitter, radical, realist, rectifier, redhead, registrant, relative, relative quantity, reliever, religious person, repeater, rescuer, rester, restrainer, revenant, rich person, right-hander, riser, romper, root, roundhead, ruler, rune, rusher, sagittarius, scientist, scorpio, scratcher, second-rater, seeder, seeker, segregate, self, sensualist, sentimentalist, sex object, sex symbol, shaker, showman, signer, simpleton, singular, six-footer, skidder, slav, slave, sleepyhead, sloucher, small letter, small person, smasher, smiler, sneezer, sniffer, sniffler, snuffer, snuffler, socializer, sort, sounding board, space, sphinx, spitter, sport, sprawler, spurner, squinter, stenograph, stifler, stigmatic, stooper, stranger, struggler, subject, subscript, supernumerary, superscript, surrenderer, survivalist, survivor, suspect, system of measurement, tagger, tapper, taurus, tempter, termer, terror, testator, thin person, third-rater, thrower, tiger, time interval, time unit, totemist, toucher, transfer, transsexual, transvestite, traveler, trier, turner, type, tyrant, undoer, unfortunate, unit cell, unskilled person, unwelcome person, user, value, vanisher, victim, victorian, virgo, visionary, visually impaired person, volume, waiter, waker, walk-in, wanter, ward, warrior, watcher, weakling, weasel, white, wiggler, winker, withholder, witness, worker, worldling, yawner

Hyponyms (Specific examples)(下位語): acyl, alcohol group, aldehyde group, alkyl, allyl, amino, amyl, anarchist, azido group, azo group, benzoyl group, benzyl, bolshevik, butyl, cacodyl, carbonyl group, carboxyl, chromophore, cyano group, extremist, glyceryl, hydrazo group, hydroxyl, ketone group, leveler, methylene group, nitrite, nitro group, propyl, revolutionist, terrorist, trotskyite, uranyl, vinyl, wobbly, young turk

Derivationally Related Words(派生語)

Derivationally Related Words: base, revolution, stem

Categories(カテゴリー)

Domain Categories: science

Usage Category: formal

Usage Context: descriptive

Grammatical Notes:

Prefixes/Suffixes(接頭辞/接尾辞)

Prefixes(接頭辞):

Suffixes(接尾辞): al

Exam Level

大学受験レベル

英検準2級

Media Appearance(メディア登場例)

Books(洋書): Atomic Habits

Movies(映画):

Other Information(その他)

Is Abstract?(抽象的な言葉?) Yes

Is Emotion Word?(感情的な言葉?) No

Emotion Categories: