undistinguishable
/ˌʌndɪˈstɪŋɡwɪʃəb(ə)l/
"undistinguishable" is a 17-letter English headword indexed on PlainSpell.
The verdict
“undistinguishable” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 17
- letters
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Imperceptible; indistinct.
Corpus desk
Index EN-undistinguishable · undistinguishable · English
undistinguishable · unranked · 0 variants · 0 confusables
- FREQ-UNRANKED Unranked
- LEN-MEGA 17 letters
- VOW-7 7 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-THIN "U" 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 | undistinguishable |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˌʌndɪˈstɪŋɡwɪʃəb(ə)l/ |
| Letters | 17 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “undistinguishable” in English
Rare enough to double-check
undistinguishable is uncommon English outside the top frequency list, classed as anadjective, transcribed /ˌʌndɪˈstɪŋɡwɪʃəb(ə)l/. Rarity is why readers land here mid-draft. 2 senses are on record.
Zero misspellings are on record for undistinguishable in our index, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: From un- + distinguishable. The correct English form is undistinguishable, spelled U-N-D-I-S-T-I-N-G-U-I-S-H-A-B-L-E.
Definition
- 1Imperceptible; indistinct.
- 2Indistinguishable.
Recorded use
Wiktionary exampleThese source excerpts show how undistinguishable appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Here I obtained the rare and beautiful swallow-tail butterflies, Papilio aenomaus and P. liris; the males of which are quite unlike each other, and belong in fact to distinct sections of the genus, while the females are so much alike that they are undistinguishable on the wing, and to an uneducated eye equally so in the cabinet.
Etymology
From un- + distinguishable.
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.