radical

extremely new and different from what is usual or traditional; very extreme

radical, extremo, revolucionario

• a radical change/reform/measure

Collocations radical reform · radical change

• The government introduced some radical reforms.

  El gobierno introdujo algunas reformas radicales.

relating to a political party or group that wants very big changes in the way a country is run, especially by using force if necessary

radical, revolucionario, extremista

• a radical party/group/movement

Collocations radical group · radical movement

• The country was in the grip of a radical political movement.

  El país estaba bajo el control de un movimiento político radical.

relating to or using the most recent and advanced methods, ideas, etc., especially in science and medicine

radical, innovador, avanzado

• a radical treatment/therapy

Collocations radical therapy · radical treatment

• The patient received a radical new form of cancer treatment.

  El paciente recibió un nuevo tratamiento radical para el cáncer.

relating to or involving a root, especially the square root of a number

radical, raíz cuadrada

• a radical equation

Collocations radical equation · square root

• The problem involves a complex radical equation.

  El problema involucra una ecuación compleja con radicales.

the root of a word or the part of a word that is left when all prefixes and suffixes are removed

raíz, radical (lingüística)

• a root/word

Collocations root word · word origin

• The root of the word 'unhappy' is 'happy'.

  La raíz de la palabra 'infeliz' es 'feliz'.

relating to or containing a radical in chemistry, which is an atom or group of atoms that can exist on its own and join with other atoms or groups of atoms

radical (química), reactividad

• a radical compound

Collocations radical compound · chemical reaction

• The substance is a highly reactive radical.

  La sustancia es un radical altamente reactivo.

relating to the period of time in France from 1789 to 1799 when there was a revolution and many changes were made, especially by using force if necessary

radical (frances), revolucionario

• a period/person

Collocations French Revolution · revolutionary period

• The French Revolution was a radical change in the political system.

  La Revolución Francesa fue un cambio revolucionario en el sistema político.

relating to or using new and unusual ideas, especially in art

radical (arte), innovador

• an artist/work

Collocations radical artist · innovative work

• The exhibition featured radical new artists.

  La exposición presentó a nuevos artistas innovadores.