a. Done or achieved with little effort or difficulty; easy: a facile victory.
b. Working, acting, or done with ease and fluency: a facile writer; facile prose. See Synonyms at easy.
2. Arrived at or presented without due care, effort, or examination; superficial: We don't need another facile solution to a complex problem.
3. Archaic Pleasingly mild, as in disposition or manner.
[Middle English, from Old French, from Latin facilis; see dhē- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.