Thesaurus.com
Dictionary.com
Showing results for infeasible. Search instead for in-feasible.
Definitions

infeasible

[in-fee-zuh-buhl] / ɪnˈfi zə bəl /


ADJECTIVE
impracticable
Synonyms
Antonyms










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.

The FDA already requires randomized controlled trials prior to approving vaccines and most medicines—except when they would be unethical or infeasible, as is the case for rare diseases and terminal cancers.

From The Wall Street Journal • Dec. 3, 2025

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

Kim noted that this feature is desirable in applications where cleaning and maintaining parts is expensive or infeasible.

From Science Daily • Apr. 17, 2024

It’s incredible progress on a task that was thought infeasible just a few years ago, says Aditya Grover, an AI researcher at the University of California, Los Angeles.

From Science Magazine • Nov. 14, 2023

Note that Arrow adopts feasibility, but also wants to impose infeasible conditions.

From Definition & Reality in the General Theory of Political Economy by Colignatus, Thomas