filthiness

noun

"filthiness" is a 10-letter English headword indexed on PlainSpell.

The verdict

“filthiness” is uncommon English (outside the top frequency list), classed as a noun. 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) - The property of being filthy.

Corpus desk

Index EN-filthiness · filthiness · English

filthiness · 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.

Key facts for filthiness
PropertyValue
Headwordfilthiness
LanguageEnglish
Part of speechNoun
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “filthiness” in English

filthinesssits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

filthiness is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "The property of being filthy.".

We couldn't generate a plausible misspelling set for filthiness, a straightforward case of a spelling with little room for common typos. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From filthy + -ness. The correct English form is filthiness, spelled F-I-L-T-H-I-N-E-S-S.

Definition

  1. 1
    The property of being filthy.

Recorded use

Wiktionary examples

These source excerpts show how filthiness appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Yea, as yee loue your ovvne life, peace, vvelfare; Rouze vp your ſpirits, avvaken your Chriſtian courage, and ſet your ſelues heartily againſt the traitorly ſinnes of theſe times, vvhich threaten the bane of all theſe. Cleanſe yee theſe Augean ſtables of our drunken Tauernes, of our profane ſtages, and of thoſe blinde Vaults of profeſſed filthineſſe, VVho…
  2. The Deformity, and Filthyneſs of Svvine, make them the Beauty-ſpot of the Animal Creation, and the Emblem of all Vice.

Etymology

From filthy + -ness.

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

How do you spell "filthiness"?
"filthiness" is spelled F-I-L-T-H-I-N-E-S-S.
What does "filthiness" mean?
As a noun, "filthiness" means: The property of being filthy.
What is the origin of the word "filthiness"?
From filthy + -ness. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list