multitudinous
/ˌmʌltɪˈtjuːdɪnəs/
"multitudinous" is a 13-letter English headword indexed on PlainSpell.
The verdict
“multitudinous” is outside the top-ranked English vocabulary, used as an adjective - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 13
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Existing in multitudes or great numbers; very numerous; innumerable.
| Property | Value |
|---|---|
| Headword | multitudinous |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˌmʌltɪˈtjuːdɪnəs/ |
| Letters | 13 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “multitudinous” sits in English frequency
Spelling & Dictionary Insight
The English entry for multitudinous is 13 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˌmʌltɪˈtjuːdɪnəs/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 7 distinct senses for this headword, so context determines which meaning a reader should apply.
We couldn't generate a plausible misspelling set for multitudinous, since its letter pattern doesn't lend itself to common typo substitutions. Our dataset records no confusable match here, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: Learned borrowing from Latin multitūdin- (the oblique stem of multitūdō (“great number (of people), multitude”)) + English -ous (suffix forming adjectives from nouns, denoting the presence of a quality in any degree (typically an abundance)). Multitūdō is d… The correct English form is multitudinous, spelled M-U-L-T-I-T-U-D-I-N-O-U-S.
Definition
- 1Existing in multitudes or great numbers; very numerous; innumerable.
- 2Comprising a large number of features or parts; manifold, multiple, myriad; also, having a large number of forms.
- 3Comprising a large number of features or parts; manifold, multiple, myriad; also, having a large number of forms.
- 4Of a body of water, the sea, etc.: huge, vast; also, having innumerable ripples.
- 5Followed by with: crowded with many people or things.
- 6Of or relating to the multitude (“common people; masses”).
- 7Very fruitful or productive; prolific.
Etymology
Learned borrowing from Latin multitūdin- (the oblique stem of multitūdō (“great number (of people), multitude”)) + English -ous (suffix forming adjectives from nouns, denoting the presence of a quality in any degree (typically an abundance)). Multitūdō is derived from multus (“many; much”) (ultimately from Proto-Indo-European *mel- (“to be late; to worry”)) + -tūdō (suffix forming abstract nouns denoting a condition or state). By surface analysis, multitude + -in- (interfix used before Latinate suffixes appended to nouns ending with -itude or -tude) + -ous.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “multitudinous”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is M-U-L-T-I-T-U-D-I-N-O-U-S - every other letter order is a misspelling in standard orthography.
- Say it as /ˌmʌltɪˈtjuːdɪnəs/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.