radical

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• /ˈɹædɪkəl/
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• British, Southern, Standard: /ˈɹadɪkəl/
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• Australia: Recorded audio is listed in the source snapshot.
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• homophone: radicle
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• CMU ARPABET: R AE1 D AH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
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• CMU ARPABET 2: R AE1 D IH0 K AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
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PIE word *wréh2ds Inherited from Middle English radical, from Latin rādīcālis (“of or pertaining to the root, having roots, radical”). Compare grassroots.

192 source translations are retained for this English entry.

• Arabic: جَذْريّ — pertaining to the root (of a plant)
• Armenian: արմատական (armatakan) — pertaining to the root (of a plant)
• Bulgarian: коренен (korenen) — pertaining to the root (of a plant)
• Catalan: radical — pertaining to the root (of a plant)
• Chinese Mandarin: 根的 (gēn de) — pertaining to the root (of a plant)
• Chinese Mandarin: 根部的 (gēnbù de) — pertaining to the root (of a plant)
• Finnish: juuri- — pertaining to the root (of a plant)
• French: radical — pertaining to the root (of a plant)
• Italian: radicale — pertaining to the root (of a plant)
• Romanian: de rădăcină — pertaining to the root (of a plant)
• Romanian: rădăcinal — pertaining to the root (of a plant)
• Russian: корнево́й (kornevój) — pertaining to the root (of a plant)
• Armenian: հիմնարար (himnarar) — pertaining to the basic or intrinsic nature of something
• Bulgarian: основен (osnoven) — pertaining to the basic or intrinsic nature of something
• Chinese Mandarin: 根本的 (gēnběn de) — pertaining to the basic or intrinsic nature of something
• Finnish: perus- — pertaining to the basic or intrinsic nature of something
• French: radical — pertaining to the basic or intrinsic nature of something
• Hebrew: יסודי (yesodí) — pertaining to the basic or intrinsic nature of something
• Hebrew: שורשי (shorshí) — pertaining to the basic or intrinsic nature of something
• Indonesian: radikal — pertaining to the basic or intrinsic nature of something
• Japanese: 根本的な (konponteki na) — pertaining to the basic or intrinsic nature of something
• Kazakh: түбегейлі (tübegeilı) — pertaining to the basic or intrinsic nature of something
• Portuguese: radical — pertaining to the basic or intrinsic nature of something
• Russian: фундамента́льный (fundamentálʹnyj) — pertaining to the basic or intrinsic nature of something
• Russian: основно́й (osnovnój) — pertaining to the basic or intrinsic nature of something
• Bulgarian: основен (osnoven) — thoroughgoing
• Czech: radikální — thoroughgoing
• Finnish: perusteellinen — thoroughgoing
• Finnish: mullistava — thoroughgoing
• Finnish: radikaalinen (med.) — thoroughgoing
• French: radical — thoroughgoing
• German: radikal — thoroughgoing
• Greek: ριζικός (rizikós) — thoroughgoing
• Japanese: 徹底的な (tetteiteki na) — thoroughgoing
• Polish: radykalny — thoroughgoing
• Azerbaijani: radikal — favouring fundamental change
• Bulgarian: радикален (radikalen) — favouring fundamental change
• Bulgarian: фундаментален (fundamentalen) — favouring fundamental change
• Catalan: radical — favouring fundamental change
• Danish: radikal — favouring fundamental change
• Finnish: radikaali — favouring fundamental change
• French: radical — favouring fundamental change
• German: radikal — favouring fundamental change
• Greek: ριζοσπαστικός (rizospastikós) — favouring fundamental change
• Hebrew: רָדִיקָלִי — favouring fundamental change
• Hebrew: רָדִיקָלִית — favouring fundamental change
• Hindi: उग्रवादी (ugravādī) — favouring fundamental change
• Hindi: चरमपंथी (carampanthī) — favouring fundamental change
• Hindi: अतिवादी (ativādī) — favouring fundamental change
• Hindi: इंतहापसंद (inthāpsand) — favouring fundamental change
• Indonesian: radikal — favouring fundamental change
• Japanese: 抜本的な (bapponteki na) — favouring fundamental change
• Kazakh: радикалдық (radikaldyq) — favouring fundamental change
• Māori: wāwāhi tahā — favouring fundamental change
• Māori: whakawhana — favouring fundamental change
• Norwegian Bokmål: radikal — favouring fundamental change
• Norwegian Nynorsk: radikal — favouring fundamental change
• Persian: رادیکال (râdikâl) — favouring fundamental change
• Polish: radykalny — favouring fundamental change
• Portuguese: radical — favouring fundamental change
• Russian: радика́льный (radikálʹnyj) — favouring fundamental change
• Russian: коренной (korennoj) — favouring fundamental change
• Ukrainian: радика́льний (radykálʹnyj) — favouring fundamental change
• Vietnamese: cấp tiến — favouring fundamental change
• Bulgarian: коренен (korenen) — linguistics: pertaining to the root of a word
• Chinese Mandarin: 詞根的 /词根的 (cígēn de) — linguistics: pertaining to the root of a word
• Finnish: radikaalinen — linguistics: pertaining to the root of a word
• French: radical — linguistics: pertaining to the root of a word
• Hebrew: שורשי (shorshí) — linguistics: pertaining to the root of a word
• Indonesian: radikal — linguistics: pertaining to the root of a word
• Italian: radicale — linguistics: pertaining to the root of a word
• Māori: tohutumu — linguistics: pertaining to the root of a word
• Portuguese: radical — linguistics: pertaining to the root of a word
• Russian: корнево́й (kornevój) — linguistics: pertaining to the root of a word
• Bulgarian: радикалов (radikalov) — chemistry: involving free radicals
• Dutch: radicaal — chemistry: involving free radicals
• Finnish: radikaalinen — chemistry: involving free radicals
• Finnish: radikaali- — chemistry: involving free radicals
• German: radikalisch — chemistry: involving free radicals
• Indonesian: radikal — chemistry: involving free radicals
• Italian: radicalico — chemistry: involving free radicals
• Polish: rodnik — chemistry: involving free radicals
• Portuguese: radical — chemistry: involving free radicals
• Bulgarian: под корен (pod koren) — mathematics: involving roots
• Bulgarian: за коренуване (za korenuvane) — mathematics: involving roots
• Finnish: juuri- — mathematics: involving roots
• German: Wurzel- — mathematics: involving roots
• Italian: irrazionale — mathematics: involving roots
• Latvian: iracionāls — mathematics: involving roots
• Swedish: radikal — mathematics: involving roots
• Finnish: huima — slang: excellent
• French: génial — slang: excellent
• French: super — slang: excellent
• German: krass — slang: excellent
• Portuguese: radical — slang: excellent
• Arabic: رَادِيكَالِيّ (rādīkāliyy) — person with radical opinions
• Belarusian: радыка́л (radykál) — person with radical opinions
• Belarusian: радыка́лка (radykálka) — person with radical opinions
• Bulgarian: радикал (radikal) — person with radical opinions
• Catalan: radical — person with radical opinions
• Chinese Mandarin: 激进分子 (jījìn fènzǐ) — person with radical opinions
• Chinese Mandarin: 急進派 /急进派 (jíjìnpài) — person with radical opinions
• Czech: radikál — person with radical opinions
• Finnish: radikaali — person with radical opinions
• German: Radikaler — person with radical opinions
• German: Radikale — person with radical opinions
• Greek: ριζοσπάστης (rizospástis) — person with radical opinions
• Hindi: उग्रवादी (ugravādī) — person with radical opinions
• Hindi: चरमपंथी (carampanthī) — person with radical opinions
• Hindi: अतिवादी (ativādī) — person with radical opinions
• Hindi: इंतहापसंद (inthāpsand) — person with radical opinions
• Italian: radicale — person with radical opinions
• Japanese: 急進派 (kyūshinha) — person with radical opinions
• Kazakh: радикал (radikal) — person with radical opinions
• Korean: 급진파 (geupjinpa) — person with radical opinions
• Māori: kaiwhakatuma — person with radical opinions
• Polish: radykał — person with radical opinions
• Portuguese: radical — person with radical opinions
• Russian: радика́л (radikál) — person with radical opinions
• Russian: радика́лка (radikálka) — person with radical opinions
• Ukrainian: радика́л (radykál) — person with radical opinions
• Ukrainian: радика́лка (radykálka) — person with radical opinions
• Finnish: radikaali — historical: 19th-century England
• Italian: radicale — historical: 19th-century England
• Russian: радика́л (radikál) — historical: 19th-century England
• Finnish: radikaali — historical: early 20th-century France
• French: radical — historical: early 20th-century France
• French: radicale — historical: early 20th-century France
• Italian: radicale — historical: early 20th-century France
• Russian: радика́л (radikál) — historical: early 20th-century France
• Bulgarian: корен (koren) — arithmetic: root (of a number or quantity)
• Chinese Mandarin: 根 (gēn) — arithmetic: root (of a number or quantity)
• Finnish: juuri — arithmetic: root (of a number or quantity)
• French: racine — arithmetic: root (of a number or quantity)
• German: Wurzel — arithmetic: root (of a number or quantity)
• German: Radix — arithmetic: root (of a number or quantity)
• Italian: radice — arithmetic: root (of a number or quantity)
• Japanese: 根 (kon) — arithmetic: root (of a number or quantity)
• Japanese: 累乗根 (ruijōkon) — arithmetic: root (of a number or quantity)
• Khmer: រ៉ាឌីកាល់ (raadiikal) — arithmetic: root (of a number or quantity)
• Polish: pierwiastek — arithmetic: root (of a number or quantity)
• Russian: ко́рень (kórenʹ) — arithmetic: root (of a number or quantity)
• Tagalog: pang-ugat — arithmetic: root (of a number or quantity)
• Turkmen: kök — arithmetic: root (of a number or quantity)
• Bulgarian: корен (koren) — linguistics: portion of a character that provides an indication of its meaning
• Catalan: radical — linguistics: portion of a character that provides an indication of its meaning
• Chinese Mandarin: 部首 (bùshǒu) — linguistics: portion of a character that provides an indication of its meaning
• Estonian: kirjamärk — linguistics: portion of a character that provides an indication of its meaning
• French: clé — linguistics: portion of a character that provides an indication of its meaning
• French: radical — linguistics: portion of a character that provides an indication of its meaning
• German: Radikal — linguistics: portion of a character that provides an indication of its meaning
• Italian: radicale — linguistics: portion of a character that provides an indication of its meaning
• Japanese: 部首 (bushu) — linguistics: portion of a character that provides an indication of its meaning
• Korean: 부수 (busu) — linguistics: portion of a character that provides an indication of its meaning
• Malay: radikal — linguistics: portion of a character that provides an indication of its meaning
• Polish: pierwiastek — linguistics: portion of a character that provides an indication of its meaning
• Polish: klucz — linguistics: portion of a character that provides an indication of its meaning
• Polish: radykał — linguistics: portion of a character that provides an indication of its meaning
• Portuguese: radical — linguistics: portion of a character that provides an indication of its meaning
• Russian: радика́л (radikál) — linguistics: portion of a character that provides an indication of its meaning
• Russian: ключ (ključ) — linguistics: portion of a character that provides an indication of its meaning
• Vietnamese: bộ thủ — linguistics: portion of a character that provides an indication of its meaning
• Chinese Mandarin: 词根 (cígēn) — linguistics: any one of the set of consonants that make up a root
• Chinese Mandarin: 部首 (bùshǒu) — linguistics: any one of the set of consonants that make up a root
• Chinese Mandarin: 偏旁 (piānpáng) — linguistics: any one of the set of consonants that make up a root
• Finnish: radikaali — linguistics: any one of the set of consonants that make up a root
• Italian: radicale — linguistics: any one of the set of consonants that make up a root
• Russian: ко́рень (kórenʹ) — linguistics: any one of the set of consonants that make up a root
• Russian: радика́л (radikál) — linguistics: any one of the set of consonants that make up a root
• Bulgarian: радикал (radikal) — chemistry: group of atoms that take part in reactions as a single unit
• Catalan: radical — chemistry: group of atoms that take part in reactions as a single unit
• Dutch: radicaal — chemistry: group of atoms that take part in reactions as a single unit
• Finnish: radikaali — chemistry: group of atoms that take part in reactions as a single unit
• Indonesian: radikal — chemistry: group of atoms that take part in reactions as a single unit
• Italian: radicale — chemistry: group of atoms that take part in reactions as a single unit
• Khmer: រ៉ាឌីកាល់ (raadiikal) — chemistry: group of atoms that take part in reactions as a single unit
• Russian: радика́л (radikál) — chemistry: group of atoms that take part in reactions as a single unit
• Tagalog: mulipon — chemistry: group of atoms that take part in reactions as a single unit
• Vietnamese: gốc tự do — chemistry: group of atoms that take part in reactions as a single unit
• Bulgarian: свободен радикал (svoboden radikal) — organic chemistry: free radical
• Czech: radikál — organic chemistry: free radical
• Finnish: vapaa radikaali — organic chemistry: free radical
• French: radical — organic chemistry: free radical
• German: Radikal — organic chemistry: free radical
• Italian: radicale — organic chemistry: free radical
• Polish: rodnik — organic chemistry: free radical
• Russian: радика́л (radikál) — organic chemistry: free radical
• Italian: radicale — ring theory: intersection of prime ideals containing a given ideal
• Polish: radykał — ring theory: intersection of prime ideals containing a given ideal
• Italian: radicale — ring theory: ideal of elements of a ring sharing a certain given property
• Italian: radicale — ring theory: intersection of maximal submodules of a module
• Italian: radicale — number theory: product of the distinct prime factors of a given positive integer