Dictionary.com
definitions
  • synonyms

infeasible

[in-fee-zuh-buh l]
See more synonyms for infeasible on Thesaurus.com
adjective
  1. not feasible; impracticable.
Show More

Origin of infeasible

First recorded in 1525–35; in-3 + feasible
Related formsin·fea·si·bil·i·ty, in·fea·si·ble·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

illogicalspeculativeunworkableunusableimprobableunrealabsurdunwisequixoticimpossibleunattainableuselessunimaginableimpracticalimperviousinaccessibleunreasonableimpassableinsurmountablefutile

Examples from the Web for infeasible

Historical Examples

  • He sought to talk discontentedly of the project, as if he found it infeasible.

    The Story of Old Fort Loudon

    Charles Egbert Craddock

  • With good pupils it is not infeasible to read the whole of the Odyssey, since facility increases very rapidly toward the end.

    Outlines of Educational Doctrine

    John Frederick Herbart

  • The commander also rejects, at this point, courses of action found to be infeasible of accomplishment.

    Sound Military Decision

    U.s. Naval War College


British Dictionary definitions for infeasible

infeasible

adjective
  1. a less common word for impracticable
Show More
Derived Formsinfeasibility or infeasibleness, noun
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 infeasible

adj.

1530s, from in- (1) "not, opposite of" + feasible.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper