Unfeasible

//ʌnˈfiː.zə.bəl// adj

adj ·Uncommon ·Advanced level

Definitions

Adjective

1
Infeasible: not feasible.

Adjective

1
not capable of being carried out or put into practice wordnet

Synonyms

impracticable beyond one impossible impossible impracticable impractical

Antonyms

feasible manageable

Example

"A no-fly zone over Ukraine is unfeasible."

Etymology

From un- + feasible.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.