fathomless
/ˈfæ.ðəm.ləs/
"fathomless" is a 10-letter English headword indexed on PlainSpell.
The verdict
“fathomless” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Very deep (especially of water deeper than a lead line can measure); bottomless, immeasurable.
Corpus desk
Index EN-fathomless · fathomless · English
fathomless · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 10 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "F" thin
- PHOTO-UNK Peer pending
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
| Property | Value |
|---|---|
| Headword | fathomless |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈfæ.ðəm.ləs/ |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “fathomless” sits in English frequency
Rare enough to double-check
fathomless is uncommon English outside the top frequency list, classed as anadjective, transcribed /ˈfæ.ðəm.ləs/. Rarity is why readers land here mid-draft. 2 senses are on record.
fathomless has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. No close-neighbour confusable shows up for this headword in our dataset, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From fathom + -less. The correct English form is fathomless, spelled F-A-T-H-O-M-L-E-S-S.
Definition
- 1Very deep (especially of water deeper than a lead line can measure); bottomless, immeasurable.
- 2unfathomable or incomprehensible.
Recorded use
Wiktionary exampleThese source excerpts show how fathomless appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Prais’d be the fathomless universe, / For life and joy, and for objects and knowledge curious, / And for love, sweet love—but praise! praise! praise! / For the sure-enwinding arms of cool-enfolding death.
Etymology
From fathom + -less.
Synonyms
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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
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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.