understandable

adj

By · According to Wiktionary data (CC BY-SA) ·

"understandable" is a 14-letter English headword indexed on PlainSpell.

The verdict

“understandable” has 23 generated spelling variants in the English index at frequency #10,629. The variants make it a useful spelling check.

#10,629
frequency rank, English
1,433
“U” headwords
23
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Capable of being understood; comprehensible.

Corpus desk

Index EN-understandable · understandable · English

understandable · rank #10,629 · 23 variants · 1 confusable

  • FREQ-MID #10,629
  • LEN-MEGA 14 letters
  • VOW-5 5 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 23 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH unchanged

Nearest frequency peer: unchanged (-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.

Frequency neighbourhood for “understandable”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “understandable” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

understandable vs understandably
93% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for understandable
PropertyValue
Headwordunderstandable
LanguageEnglish
Part of speechAdjective
Letters14
Frequency rank#10,629
Misspellings tracked23
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “understandable” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).understandable lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 23 spelling variants around understandable, anadjective. Corpus frequency is #10,629 among 1,433 “U” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 23 likely wrong-spelling variants for understandable, with forms such as "nuderstandable", "udnerstandable", and "undderstandable". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 1 confusable-pair relationship, "understandably", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English understondable, equivalent to understand + -able. The correct English form is understandable, spelled U-N-D-E-R-S-T-A-N-D-A-B-L-E.

Definition

  1. 1
    Capable of being understood; comprehensible.
  2. 2
    Capable of being accepted or excused under the circumstances.

Recorded use

Wiktionary example

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

  1. The original branch was 5¾ miles long, from Llantrisant to Cowbridge only, but in 1889, the T.V.R. [Taff Vale Railway] obtained powers […] to continue the line for 6½ miles south to the coast at Aberthaw, ostensibly for the purpose of serving the important limestone works there, but one suspects other motives, including an understandable desire on the par…

Etymology

From Middle English understondable, equivalent to understand + -able.

Synonyms

comprehensibleacceptableexcusable

Antonyms

incomprehensibleunfathomableinexcusableunacceptable

This word in other languages

entendible(Español)compréhensible(Français)verständlich(Deutsch)compreensível(Português)

Common misspellings

Also misspelled as:

  • nuderstandable
  • udnerstandable
  • undderstandable
  • underrstandable
  • undersatndable
  • undersstandable
  • understadnable
  • understanadble
  • understandabble
  • understandabel
  • understandablle
  • understandalbe
  • understandbale
  • understanddable
  • understandible
  • understanndable
  • understnadable
  • understtandable
  • undertsandable
  • undesrtandable
  • undrestandable
  • unedrstandable
  • unnderstandable

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of understandable - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

nuderstandable2udnerstandable2undderstandable1underrstandable1undersatndable2undersstandable1understadnable2understanadble2
Edit distance from "understandable"

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.

PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of September 3, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.

Frequently Asked Questions

How do you spell "understandable"?
"understandable" is spelled U-N-D-E-R-S-T-A-N-D-A-B-L-E.
What does "understandable" mean?
As an adjective, "understandable" means: Capable of being understood; comprehensible.
What words are commonly confused with "understandable"?
"understandable" is commonly confused with "understandably". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "understandable"?
From Middle English understondable, equivalent to understand + -able. 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 "understandable", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 14 letters (nearest by frequency rank).

considerations#10,518reconciliation#10,921professionally#10,261sustainability#10,139

Similar misspelling depth

Headwords with a similar count of attested misspellings (23 here; floor ≥5).

accomplishments23 variantsrepresentations23 variantselectromagnetic23 variantsreconstruction23 variants

What to do next

You've looked up "understandable". Here's where to go from here.

  • This headword has one recorded confusable pair with "understandably". View pair
  • 23 edit-distance misspelling variants are generated for spell-check research on this headword. See variants
  • Usage frequency rank #10,629 among English headwords in this corpus. Corpus statistics
  • Browse more English words in the "U" letter cohort. U–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list