inflammable
in·flam·ma·ble/ɪnˈflæməbəl/adjective, noun
inflammable is spelled I-N-F-L-A-M-M-A-B-L-E: 11 letters and 4 syllables (in·flam·ma·ble). It appears about once in every 7 million words in written English, the 80,453rd most frequent word form (wordfreq, 2021 data). People search “flammable vs inflammable” about 5,400 times a month (Google, United States). As an adjective, inflammable means “Capable of burning” (English Wiktionary, September 2026).
How many letters and syllables are in inflammable?
| Letters | 11: I-N-F-L-A-M-M-A-B-L-E |
|---|---|
| Syllables | 4: in·flam·ma·ble |
| In writing | about once in every 7 million words; the 80,453rd 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; 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 inflammable?
Inflammable appears about once in every 7 million words in written English, the 80,453rd 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 inflammable?
- /ɪnˈflæməbəl/
- [ɪnˈflæməbl̩] ~ [ɪɱˈflæməbl̩]
- [ɪnˈfleə̯məbəl]
Inflammable has 4 syllables, split in·flam·ma·ble in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-inflammable.wav, Wikimedia Commons (author and licence on each file's page).
Words people confuse with inflammable
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 inflammable
- more inflammable comparative
- most inflammable superlative
- enflammable rare
- inflammables plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does inflammable mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Capable of burning.
- 2
Easily set on fire.
- 3
Easily excited; set off by the slightest excuse; easily enraged or inflamed.
- 4
nonstandardIncapable of burning; not easily set on fire. From in- + flammable, via backformation.
noun
- 1
Any inflammable substance.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Inflammable in Spanish, French, German and Portuguese
In the sense capable of burning – see also flammable:
| Language | Words |
|---|---|
| French | inflammable |
| German | brennbar, entflammbar |
| Portuguese | inflamável |
| Spanish | inflamable, combustible |
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 inflammable come from?
From Middle French inflammable, from Medieval Latin īnflammābilis, from Latin īnflammāre (“to set on fire”), from in (“in, on”) + flamma (“flame”). By surface analysis, inflame + -able, literally “able to be inflamed”.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).