facile

adj

1. (derogatory, usually)Easy; contemptibly easy.

   “[…] as he that is benummed with cold, sits still shaking, that might relieve himselfe with a little exercise or stirring, doe they complaine, but will not use the facile and ready meanes to doe themselves good; […]”

2. (archaic)Amiable, flexible, easy to get along with.

   “His facile disposition made him many friends.”

3. Effortless, fluent (of work, abilities etc.).

   “Her writing was facile and articulate.”

   “we can learn the impression that he made upon a stranger and a foreigner at this period, thanks to the facile pen of Fannu Burney.”

   “The centenary of Bradshaw has proved further scope in the railway field for his facile pen to be devoted to an officially-sponsored work, and the "most famous guide in the world" is fortunate in its choice of a biographer.”

   “"Discipline," Jorge Julio Saavedra was repeating, "is more necessary to me than to other more facile writers.”

   “A facile and persuasive writer, he also turned out countless newspaper articles on Russian aims in Central Asia and how best these could be thwarted.”

4. Lazy, simplistic, superficial (especially of explanations, discussions etc.).

   “He arrived with a facile understanding of her works.”

   “There is a facile view that our green commitments – to tackling climate change, avoiding air and water pollution, protecting natural habitats – are an obstacle to growth. The message of the commodity markets is surely different.”

5. Of a reaction or other process, taking place readily.

   “Decarboxylation of beta-keto acids is facile.”