1. superficially impressive, but lacking depth and attention to the true complexities of a subject

- too facile a solution for so complex a problem

Similar word(s): superficial, slick

2. performing adroitly and without effort

- a facile hand

Similar word(s): effortless

3. expressing yourself readily, clearly, effectively

- able to dazzle with his facile tongue

Similar word(s): articulate, eloquent, fluent, silver

Sentences with facile as an adjective:

- His facile disposition made him many friends.

- Decarboxylation of beta-keto acids is facile...