This is the 652nd most frequent French word.
facile
Easy.
The word 'facile' is used as an adjective describing the noun 'tâche', indicating that it is easy to accomplish.
Cette tâche est facile à accomplir.
This task is easy to accomplish.
Here, 'facile' is used again as an adjective describing 'matière', conveying the straightforwardness of the subject.
Les étudiants trouvent que cette matière est facile.
The students find that this subject is easy.
The word 'facile' in this case serves as an adjective in a superlative context ('le plus facile'), describing the comparative easiness of the 'chemin'.