understandable

adj

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

The verdict

“understandable” is a moderately-common English word, ranked #10,629 in English word frequency and used as an adjective.

#10,629
frequency rank, English
14
letters
23
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Capable of being understood; comprehensible.

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.

Spelling & Dictionary Insight

The English entry for understandable is 14 letters long, classified as an adjective. Corpus data places it at rank #10,629 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

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.

Etymology

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

Synonyms

Antonyms

This word in other languages

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.

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.

Using “understandable”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is U-N-D-E-R-S-T-A-N-D-A-B-L-E - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “understandably” - see the side-by-side comparison. understandable vs understandably
  • Browse more English words and confusable pairs in the same reference. English words
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 FrequencyWords open word-frequency list