[ fee-zuh-buh l ]
/ ˈfi zə bəl /


capable of being done, effected, or accomplished: a feasible plan.
probable; likely: a feasible theory.
suitable: a road feasible for travel.

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


1 See possible.

Related forms

Can be confused

feasible viable
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for unfeasibly


/ (ˈfiːzəbəl) /


able to be done or put into effect; possible
likely; probablea feasible excuse

Derived Forms

feasibility 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