infeasible
Americanadjective
adjective
Other Word Forms
Etymology
Origin of infeasible
Explanation
Infeasible things are impossible, or too complicated to actually be done. Your idea of staging a city-wide game of Capture the Flag is probably infeasible. After several frustrating attempts at walking your cat around the neighborhood on a leash, you might finally decide the idea is infeasible — it's just not going to work the way you imagined. When something is feasible, it's entirely possible. Feasible comes from the Old French faisable, "that may be done," from the Latin root facere, "to make or do." When you add the "not" prefix in-, you get infeasible.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
He insists that a June 5 invasion will fail because of high waves and low clouds that would make air support infeasible.
From The Wall Street Journal • May 28, 2026
In these cases, no randomized trial will be required because it’s simply infeasible.
From The Wall Street Journal • Feb. 23, 2026
Smith, speaking to The Times, stressed that the new guidelines only apply to situations where the Fire Department has deemed evacuations infeasible.
From Los Angeles Times • Nov. 24, 2025
This is then used to generate a probability distribution function which consists of all the feasible and infeasible solutions that are within the constraints of the COP.
From Science Daily • Mar. 25, 2024
Economies with different institutional features may find EITC-like policies to be less effective or administratively infeasible.
From Definition & Reality in the General Theory of Political Economy by Colignatus, Thomas
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
