Part of speech: Adjective
arrived at without due care or effort; lacking depth
Example: too facile a solution for so complex a problem
Part of speech: Adjective
performing adroitly and without effort
Example: a facile hand
Silver-tongued, Silver, Facile, Fluent, Smooth-spoken
The word "facile" comes from Latin facilis, which was borrowed from Middle French facile.
Latin became the scholarly language of Europe for over 1,500 years, standardizing technical vocabulary.