delusional
/dɪˈluːʒənəl/adjective, noun
delusional is spelled D-E-L-U-S-I-O-N-A-L: 10 letters and 4 syllables. It appears 3.2 times per million words in written English, the 14,731st most frequent word form (wordfreq, 2021 data). As an adjective, delusional means “Suffering from delusions; having false or faulty beliefs” (English Wiktionary, September 2026).
How many letters and syllables are in delusional?
| Letters | 10: D-E-L-U-S-I-O-N-A-L |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | 3.2 times per million words; the 14,731st most frequent word form |
| Wrong spellings searched | none measured in 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).
How common is delusional?
Delusional appears 3.2 times per million words in written English, the 14,731st 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 delusional?
- /dɪˈluːʒənəl/
Delusional 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). Recordings: LL-Q1860_(eng)-Vealhurl-delusional.wav, Wikimedia Commons (author and licence on each file's page).
Forms of delusional
- more delusional comparative
- most delusional superlative
- delusionals plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does delusional mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Suffering from delusions; having false or faulty beliefs.
You're delusional if you think that plan will work.
- 2
Being, in the form of, or relating to, a delusion.
noun
- 1
A person suffering from a delusion.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Delusional in Spanish, French, German and Portuguese
In the sense suffering from or characterized by delusions:
| Language | Words |
|---|---|
| French | béjaune, délirant, qui nie, insensé, délusionnel, désillusion |
| German | wahnhaft, Wahn-, einer Wahnvorstellung anhängend, verblendet |
| Portuguese | ilusório, enganoso, fantasioso, enganador, delirante |
| Spanish | delirando, delusional, iluso |
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 delusional come from?
From delusion + -al.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).