unaccustomed

adj

"unaccustomed" is a 12-letter English headword indexed on PlainSpell.

The verdict

“unaccustomed” is uncommon English (frequency #56,506 among 1,433 “U” headwords), classed as an adjective. The kind of spelling people second-guess.

#56,506
frequency rank, English
1,433
“U” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not used to an event or thing, not accustomed.

Corpus desk

Index EN-unaccustomed · unaccustomed · English

unaccustomed · rank #56,506 · 0 variants · 0 confusables

  • FREQ-RARE #56,506
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH unawares

Nearest frequency peer: unawares (+1 rank slots)

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.

Long-tail ranks near “unaccustomed”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “unaccustomed” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for unaccustomed
PropertyValue
Headwordunaccustomed
LanguageEnglish
Part of speechAdjective
Letters12
Frequency rank#56,506
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unaccustomed” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).unaccustomedfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “unawares” (#56,507), “universalism” (#56,508), “tweety” (#56,503). Among 1,433 “U” headwords, “unaccustomed” is #56,506. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unaccustomed is uncommon English at frequency #56,506 among 1,433 “U” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 2 senses are on record.

No generated misspelling entries exist for unaccustomed in our index, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From un- + accustomed. The correct English form is unaccustomed, spelled U-N-A-C-C-U-S-T-O-M-E-D.

Definition

  1. 1
    Not used to an event or thing, not accustomed.
  2. 2
    To which one is not accustomed, unfamiliar

Recorded use

Wiktionary examples

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

  1. He is unaccustomed to the cold.
  2. […] I again conveyed his Key into his Pocket, and counterfeiting Sleep, tho’ I never once cloſed my Eyes, lay in Bed till after he aroſe and went to Prayers, an Exerciſe to which I had long been unaccuſtomed.

Etymology

From un- + accustomed.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "unaccustomed"?
"unaccustomed" is spelled U-N-A-C-C-U-S-T-O-M-E-D.
What does "unaccustomed" mean?
As an adjective, "unaccustomed" means: Not used to an event or thing, not accustomed.
What is the origin of the word "unaccustomed"?
From un- + accustomed. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "unaccustomed", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list