thickheadedness
"thickheadedness" is a 15-letter English headword indexed on PlainSpell.
The verdict
“thickheadedness” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 15
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - stupidity
Corpus desk
Index EN-thickheadedness · thickheadedness · English
thickheadedness · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 15 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "T" 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 | thickheadedness |
| Language | English |
| Part of speech | Noun |
| Letters | 15 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “thickheadedness” in English
Rare enough to double-check
thickheadedness is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "stupidity".
Our edit-distance generator produced no likely misspellings for thickheadedness, a sign its spelling follows regular English conventions. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From thickheaded + -ness. The correct English form is thickheadedness, spelled T-H-I-C-K-H-E-A-D-E-D-N-E-S-S.
Definition
- 1stupidity
Etymology
From thickheaded + -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.