Radical

génial

(slang: excellent)

radical

(pertaining to the root (of a plant))

radical

(pertaining to the basic or intrinsic nature of something)

radical

(thoroughgoing)

radical

(favouring fundamental change)

radical

(linguistics: pertaining to the root of a word)

super

(slang: excellent)

clé

(linguistics: portion of a character that provides an indication of its meaning)

racine

(arithmetic: root (of a number or quantity))

radical

(historical: early 20th-century France)

radical

(linguistics: portion of a character that provides an indication of its meaning)

radical

(organic chemistry: free radical)

radicale

(historical: early 20th-century France)