undesirable
un·de·sir·able/ˌʌndɪˈzaɪɹəbəl/adjective, noun
undesirable is spelled U-N-D-E-S-I-R-A-B-L-E: 11 letters and 4 syllables (un·de·sir·able). It appears 2.3 times per million words in written English, the 18,064th most frequent word form (wordfreq, 2021 data). As an adjective, undesirable means “Not desirable, objectionable or not likely to please” (English Wiktionary, September 2026).
How many letters and syllables are in undesirable?
| Letters | 11: U-N-D-E-S-I-R-A-B-L-E |
|---|---|
| Syllables | 4: un·de·sir·able |
| In writing | 2.3 times per million words; the 18,064th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is undesirable?
Undesirable appears 2.3 times per million words in written English, the 18,064th 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 undesirable?
- /ˌʌndɪˈzaɪɹəbəl/
Undesirable has 4 syllables, split un·de·sir·able in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vininn126-undesirable.wav, Wikimedia Commons (author and licence on each file's page).
Forms of undesirable
- more undesirable comparative
- most undesirable superlative
- undesirables plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does undesirable mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Not desirable, objectionable or not likely to please.
noun
- 1
An undesirable person.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Undesirable in Spanish, French, German and Portuguese
In the sense objectionable or not likely to please:
| Language | Words |
|---|---|
| French | indésirable |
| German | unerwünscht |
| Portuguese | indesejável |
| Spanish | indeseable |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does undesirable come from?
From un- + desirable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).