radical

radical, profond

Qui transforme profondément la nature ou les bases de quelque chose.

En anglais simple : Affecting the basic nature of something in a very large or important way.

• The house needs radical changes.
• Their plans represent a radical shift in policy.
• We proposed a radical overhaul of the system.

Synonymes : fundamental, drastic, major

Contraires : minor, superficial

Expressions courantes : radical change, radical reform, radical difference

radical, novateur

Très différent des idées admises ou des façons habituelles de faire.

En anglais simple : Very different from accepted ideas or usual ways of doing things.

• Her idea seemed radical at first.
• The architect proposed a radical new design.
• Would a more radical approach solve the problem?

Synonymes : unconventional, innovative

Contraires : conventional

Expressions courantes : radical idea, radical approach, radical design

radical

Qui défend des changements dans les règles ou l’organisation fondamentales de la société ou d’un autre système.

En anglais simple : Supporting changes to the basic rules or organization of society or another system.

• He holds radical political views.
• The radical party demanded a new system of government.
• Her beliefs became more radical over time.

Synonymes : revolutionary

Contraires : conservative

Expressions courantes : radical beliefs, radical movement, radical politics

radical, complet

Très étendu et complet, touchant toutes les parties de quelque chose ou une grande partie d’entre elles.

En anglais simple : Extensive and thorough, affecting all or many parts of something.

• The disease required radical treatment.
• Radical surgery removed the entire affected organ.
• They considered whether a less radical procedure would work.

Synonymes : thorough, far-reaching, extensive

Contraires : limited

Expressions courantes : radical surgery, radical treatment, radical removal

radical

Qui concerne la racine d’une plante, d’un mot ou d’un nombre.

En anglais simple : Connected with the root of a plant, word, or number.

• The plant has several radical leaves.
• Students learned to simplify radical expressions.
• The radical element remains when the word ending is removed.

Expressions courantes : radical leaves, radical expression, radical element

génial, super

Extrêmement bon, enthousiasmant ou impressionnant.

En anglais simple : Extremely good, exciting, or impressive.

• That trick was radical!
• We caught some radical waves yesterday.
• Your new board looks radical, dude.

Synonymes : awesome, cool, great

Contraires : awful

Expressions courantes : radical trick, radical ride, radical outfit

radical

Personne qui défend de grands changements sociaux ou dont les idées diffèrent fortement de celles de la majorité.

En anglais simple : Someone who supports major changes to society or holds views very different from most people.

• He was a radical in his youth.
• The radicals called for major political changes.
• Moderates and radicals disagreed about the next step.

Synonymes : revolutionary

Contraires : conservative

Expressions courantes : political radical, young radical, left-wing radical

radical, radical libre

Atome ou groupe d’atomes ayant un électron sans partenaire, ce qui le rend souvent très réactif.

En anglais simple : An atom or group of atoms with an electron that has no partner, often making it react easily.

• The reaction produced a radical.
• Free radicals can react with nearby molecules.
• Each radical has at least one unpaired electron.

Synonymes : free radical

Expressions courantes : free radical, radical reaction, oxygen radical