deterioration

/dɪˌtɪəɹɪəˈɹeɪʃən/

//dɪˌtɪəɹɪəˈɹeɪʃən// noun

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

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

The verdict

“deterioration” is a moderately-common English word, ranked #16,449 in English word frequency and used as a noun.

#16,449
frequency rank, English
13
letters
19
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The process of making or growing worse, or the state of having grown worse.

Visual similarity to commonly confused words

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

deterioration vs deteriorating
85% similar

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

Key facts for deterioration
PropertyValue
Headworddeterioration
LanguageEnglish
Part of speechNoun
IPA/dɪˌtɪəɹɪəˈɹeɪʃən/
Letters13
Frequency rank#16,449
Misspellings tracked19
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “deterioration” 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). deterioration 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 deterioration is 13 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /dɪˌtɪəɹɪəˈɹeɪʃən/. Corpus data places it at rank #16,449 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "The process of making or growing worse, or the state of having grown worse.".

Our generated misspelling index lists 19 likely wrong-spelling variants for deterioration, with forms such as "ddeterioration", "deetrioration", and "deteiroration". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "deteriorating", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Borrowed from French détérioration; morphologically deteriorate + -ion. The correct English form is deterioration, spelled D-E-T-E-R-I-O-R-A-T-I-O-N.

Definition

  1. 1
    The process of making or growing worse, or the state of having grown worse.

Etymology

Borrowed from French détérioration; morphologically deteriorate + -ion.

Synonyms

aggravationcorruptiondebasementdegenerationdegradationdeteriorationdevolutionembasementexacerbationruiningwitheringworseningwrecking

Antonyms

ameliorationbettermentimprovalimprovement

This word in other languages

deterioro(Español)détérioration(Français)Verschlimmerung(Deutsch)

Common misspellings

Also misspelled as: ddeterioration,deetrioration,deteiroration,deterioartion,deterioraiton,deteriorasion,deterioratino,deteriorationn,deterioratoin,deteriorattion,deteriorration,deteriortaion,deteriroation,deteroiration,deterrioration,detreioration,detterioration,dteerioration,edterioration

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of deterioration - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ddeterioration1deetrioration2deteiroration2deterioartion2deterioraiton2deteriorasion1deterioratino2deteriorationn1
Edit distance from "deterioration"

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 "deterioration"?
"deterioration" is spelled D-E-T-E-R-I-O-R-A-T-I-O-N. The IPA pronunciation is /dɪˌtɪəɹɪəˈɹeɪʃən/.
What does "deterioration" mean?
As a noun, "deterioration" means: The process of making or growing worse, or the state of having grown worse.
What words are commonly confused with "deterioration"?
"deterioration" is commonly confused with "deteriorating". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "deterioration"?
The IPA (International Phonetic Alphabet) transcription for "deterioration" is /dɪˌtɪəɹɪəˈɹeɪʃən/. 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 "deterioration"?
Borrowed from French détérioration; morphologically deteriorate + -ion. 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 “deterioration”

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

  • The one correct English spelling is D-E-T-E-R-I-O-R-A-T-I-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /dɪˌtɪəɹɪəˈɹeɪʃən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “deteriorating” - see the side-by-side comparison. deterioration vs deteriorating
  • 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