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feasible

[fee-zuh-buh l]
adjective
  1. capable of being done, effected, or accomplished: a feasible plan.
  2. probable; likely: a feasible theory.
  3. suitable: a road feasible for travel.
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Origin of feasible

1425–75; late Middle English feseable, faisible < Anglo-French, Old French, equivalent to fes-, fais- (variant stem of faire < Latin facere to do) + -ible -ible
Related formsfea·si·bil·i·ty, fea·si·ble·ness, nounfea·si·bly, adverbnon·fea·si·bil·i·ty, nounnon·fea·si·ble, adjectivenon·fea·si·ble·ness, nounnon·fea·si·bly, adverbun·fea·si·bil·i·ty, nounun·fea·si·ble, adjectiveun·fea·si·ble·ness, nounun·fea·si·bly, adverb
Can be confusedfeasible viable

Synonyms for feasible

1. See possible.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for unfeasibly

feasible

adjective
  1. able to be done or put into effect; possible
  2. likely; probablea feasible excuse
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Derived Formsfeasibility or feasibleness, nounfeasibly, adverb

Word Origin for feasible

C15: from Anglo-French faisable, from faire to do, from Latin facere
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unfeasibly

feasible

adj.

"capable of being done, accomplished or carried out," mid-15c., from Anglo-French faisible, from Old French faisable "possible, easy, convenient," from fais-, stem of faire "do, make," from Latin facere "do, perform" (see factitious). Fowler recommends this word only for those "who feel that the use of an ordinary word for an ordinary notion does not do justice to their vocabulary or sufficiently exhibit their cultivation."

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Online Etymology Dictionary, © 2010 Douglas Harper