lunatic
/ˈluːnətɪk/noun, adjective
lunatic is spelled L-U-N-A-T-I-C: 7 letters and 3 syllables. It appears 2.7 times per million words in written English, the 16,455th most frequent word form (wordfreq, 2021 data). As a noun, lunatic means “An insane person” (English Wiktionary, September 2026). The plural of lunatic is lunatics.
How many letters and syllables are in lunatic?
| Letters | 7: L-U-N-A-T-I-C |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | 2.7 times per million words; the 16,455th 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 lunatic?
Lunatic appears 2.7 times per million words in written English, the 16,455th 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 lunatic?
- /ˈluːnətɪk/
As an adjective (“Crazed, mad, insane, demented”): /luːˈnætɪk/.
Lunatic has 3 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-lunatic.wav, Wikimedia Commons (author and licence on each file's page).
Forms of lunatic
- lunatics plural
- more lunatic comparative
- most lunatic superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does lunatic mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
An insane person.
adjective
- 1
Crazed, mad, insane, demented.
- 2
rareRelating to the Moon; lunar.
- 3
rareInfluenced or affected by the Moon.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Lunatic in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | lunatique, dément, démente, aliéné, aliénée, déséquilibré |
| German | Irre |
| Portuguese | lunático, lunática |
| Spanish | insano, orate , lunático |
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 lunatic come from?
From Middle English lunatik, from Old French lunatique, from Late Latin lunaticus (“moonstruck”), derived from Latin luna (“moon”), the connection stemming from the belief that changes of the moon caused intermittent insanity.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).