unnecessary
/ʌnˈnɛs.əˌsɛɹ.i/adjective
unnecessary is spelled U-N-N-E-C-E-S-S-A-R-Y. The wrong spelling people search most is unecessary: about 330 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 17 of all searches for the word. Unnecessary is an adjective meaning “Not needed or necessary”.
How many letters and syllables are in unnecessary?
| Letters | 11: U-N-N-E-C-E-S-S-A-R-Y |
|---|---|
| Syllables | 5 (from its American pronunciation) |
| In writing | 15 times per million words; the 5,309th most frequent word form |
| Wrong spellings searched | 5; the most searched, unecessary, about 330 Bing searches a month (all of them) |
| Rhymes with |
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); rhymes and same-letter words are computed by PlainSpell from its own word list.
How do you spell unnecessary?
Unnecessary is spelled U-N-N-E-C-E-S-S-A-R-Y. 5 wrong spellings are searched or written often enough to measure; together they are about 1 in 10 of the searches for unnecessary in either form.
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). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is unnecessary?
Unnecessary appears 15 times per million words in written English, the 5,309th 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 unnecessary?
- UK /ʌnˈnɛs.ə.s(ə)ɹɪ/
- UK /ʌnˈnɛs.əˌsɛɹ.ɪ/
- US /ʌnˈnɛs.əˌsɛɹ.i/
Unnecessary has 5 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). Recordings: En-us-unnecessary.ogg, En-au-unnecessary.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with unnecessary?
One word on PlainSpell end in the same sounds as unnecessary from its last stressed vowel (/ɛsəsɛɹi/):
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of unnecessary
- more unnecessary comparative
- most unnecessary superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does unnecessary mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Not needed or necessary.
The automatic child-frightener made clowns unnecessary.
- 2
Done in addition to requirements; unrequired.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Unnecessary in Spanish, French, German and Portuguese
In the sense not necessary:
| Language | Words |
|---|---|
| French | inutile, non nécessaire |
| German | nicht notwendig, unnötig |
| Portuguese | desnecessário |
| Spanish | innecesario, desnecesario (disused) |
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 unnecessary come from?
From un- + necessary.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).