Standard Lemma guide

infeasible

adj · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • CMU ARPABET: IH2 N F IY1 Z AH0 B AH0 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Not feasible.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: feasible

2

adjective satellite

Meaning 2

not capable of being carried out or put into practice

Definition source: Princeton WordNet 3.0

Examples

  • refloating the sunken ship proved impracticable because of its fragility
  • a suggested reform that was unfeasible in the prevailing circumstances

Meaning relationships

Synonyms: impracticable, unfeasible, unworkable

Antonyms: none provided

History

Etymology

From in- + feasible. Cognate to French infaisable.

Across languages

Translations

25 source translations are retained for this English entry.

  • Bulgarian: неосъществим (neosǎštestvim) — not feasible
  • Bulgarian: неизпълним (neizpǎlnim) — not feasible
  • Czech: neuskutečnitelný — not feasible
  • Czech: nerealizovatelný — not feasible
  • Esperanto: nefarebla — not feasible
  • French: infaisable — not feasible
  • German: undurchführbar — not feasible
  • Greek: ανέφικτος (anéfiktos) — not feasible
  • Icelandic: ómögulegt — not feasible
  • Icelandic: ómögulegur — not feasible
  • Malayalam: അപ്രായോഗിക (aprāyōgika) — not feasible
  • Manx: neuchooilleentagh — not feasible
  • Polish: niemożliwy — not feasible
  • Polish: nieosiągalny — not feasible
  • Polish: niewykonalny — not feasible
  • Portuguese: inviável — not feasible
  • Portuguese: inexequível — not feasible
  • Portuguese: impraticável — not feasible
  • Russian: неосуществи́мый (neosuščestvímyj) — not feasible
  • Russian: невозмо́жный (nevozmóžnyj) — not feasible
  • Russian: невыполни́мый (nevypolnímyj) — not feasible
  • Spanish: imposible — not feasible
  • Spanish: no factible — not feasible
  • Spanish: irrealizable — not feasible
  • Spanish: inhacedero — not feasible
Real reading context

infeasible in complete knowledge articles