1. Capable of being accomplished or brought about; possible: a feasible plan. See Synonyms at possible.
2. Capable of being used or dealt with successfully: feasible new sources of energy.
3. Logical; likely: a feasible explanation.
[Middle English fesable, from Old French faisable, from faire, fais-, to do, from Latin facere; see dhē- in the Appendix of Indo-European roots.]
fea′si·bili·ty, feasi·ble·ness n.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.