unfenestrated

/ʌnˈfɛnɪstɹeɪtɪd/

//ʌnˈfɛnɪstɹeɪtɪd// adj

"unfenestrated" is a 13-letter English headword indexed on PlainSpell.

The verdict

“unfenestrated” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
13
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not perforated.

Corpus desk

Index EN-unfenestrated · unfenestrated · English

unfenestrated · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 13 letters
  • VOW-5 5 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.

Key facts for unfenestrated
PropertyValue
Headwordunfenestrated
LanguageEnglish
Part of speechAdjective
IPA/ʌnˈfɛnɪstɹeɪtɪd/
Letters13
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unfenestrated” in English

unfenestratedfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

unfenestrated is uncommon English outside the top frequency list, classed as anadjective, transcribed /ʌnˈfɛnɪstɹeɪtɪd/. Rarity is why readers land here mid-draft. 2 senses are on record.

unfenestrated doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From un- + fenestrated. The correct English form is unfenestrated, spelled U-N-F-E-N-E-S-T-R-A-T-E-D.

Definition

  1. 1
    Not perforated.
  2. 2
    Without windows.

Recorded use

Wiktionary examples

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

  1. These double cannula tubes may be fenestrated or unfenestrated with a connector that fits with 15 mm ventilator tubing.
  2. On the engineering diagrams the Pump Room's maybe about twenty meters directly beneath the centermost courts […] – an unfenestrated oval chamber with six man-sized curved ducts radiating up and out to exit points on the grounds above.

Etymology

From un- + fenestrated.

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 "unfenestrated"?
"unfenestrated" is spelled U-N-F-E-N-E-S-T-R-A-T-E-D. The IPA pronunciation is /ʌnˈfɛnɪstɹeɪtɪd/.
What does "unfenestrated" mean?
As an adjective, "unfenestrated" means: Not perforated.
How do you pronounce "unfenestrated"?
The IPA (International Phonetic Alphabet) transcription for "unfenestrated" is /ʌnˈfɛnɪstɹeɪtɪd/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "unfenestrated"?
From un- + fenestrated. 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