unfeasible
/ʌnˈfi.zə.bəl/adjective
unfeasible is spelled U-N-F-E-A-S-I-B-L-E: 10 letters and 4 syllables. It appears about once in every 3 million words in written English, the 53,573rd most frequent word form (wordfreq, 2021 data). People search “infeasible vs unfeasible” about 480 times a month (Google, United States). As an adjective, unfeasible means “Infeasible: not feasible” (English Wiktionary, September 2026).
How many letters and syllables are in unfeasible?
| Letters | 10: U-N-F-E-A-S-I-B-L-E |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | about once in every 3 million words; the 53,573rd most frequent word form |
| Wrong spellings searched | none measured in search |
| Pairs people search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026).
How common is unfeasible?
Unfeasible appears about once in every 3 million words in written English, the 53,573rd most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce unfeasible?
- UK /ʌnˈfiː.zə.bəl/
- UK [ʌnˈfiː.zə.bɫ̩]
- US /ʌnˈfi.zə.bəl/
Unfeasible has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Words people confuse with unfeasible
Word pairs people search, with the monthly searches for “a vs b” (G: Google, B: Bing, United States).
Sources: Google and Bing searches (September 2025 to August 2026, through DataForSEO); English Wiktionary (homophones, alternative spellings).
Forms of unfeasible
- more unfeasible comparative
- most unfeasible superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does unfeasible mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Infeasible: not feasible.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does unfeasible come from?
From un- + feasible.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).