decaffeinated

/diːˈkæfiːneɪtəd/

//diːˈkæfiːneɪtəd// adj

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

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

The verdict

“decaffeinated” is uncommon English (frequency #88,254 among 3,470 “D” headwords), classed as an adjective. The kind of spelling people second-guess.

#88,254
frequency rank, English
3,470
“D” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - From which caffeine has been removed (e.g. decaffeinated coffee).

Corpus desk

Index EN-decaffeinated · decaffeinated · English

decaffeinated · rank #88,254 · 0 variants · 0 confusables

  • FREQ-RARE #88,254
  • LEN-MEGA 13 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,470
  • PHOTO-FINISH Deaver

Nearest frequency peer: Deaver (-2 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 “decaffeinated”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for decaffeinated
PropertyValue
Headworddecaffeinated
LanguageEnglish
Part of speechAdjective
IPA/diːˈkæfiːneɪtəd/
Letters13
Frequency rank#88,254
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “decaffeinated” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).decaffeinatedfalls 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: “Deaver” (#88,252), “DeFi” (#88,257), “deification” (#88,258). Among 3,470 “D” headwords, “decaffeinated” is #88,254. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

decaffeinated is uncommon English at frequency #88,254 among 3,470 “D” headwords, classed as anadjective, transcribed /diːˈkæfiːneɪtəd/. Rarity is why readers land here mid-draft. Gloss: "From which caffeine has been removed (e.g. decaffeinated coffee).".

decaffeinated doesn't appear in our generated misspelling index, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From de- + caffeine + -ated or de- + caffeinated. The correct English form is decaffeinated, spelled D-E-C-A-F-F-E-I-N-A-T-E-D.

Definition

  1. 1
    From which caffeine has been removed (e.g. decaffeinated coffee).

Etymology

From de- + caffeine + -ated or de- + caffeinated.

Synonyms

caffeine-freedecafunleaded

Antonyms

caffeinated

This word in other languages

descafeinado(Español)décaféiné(Français)entkoffeiniert(Deutsch)

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 "decaffeinated"?
"decaffeinated" is spelled D-E-C-A-F-F-E-I-N-A-T-E-D. The IPA pronunciation is /diːˈkæfiːneɪtəd/.
What does "decaffeinated" mean?
As an adjective, "decaffeinated" means: From which caffeine has been removed (e.g. decaffeinated coffee).
How do you pronounce "decaffeinated"?
The IPA (International Phonetic Alphabet) transcription for "decaffeinated" is /diːˈkæfiːneɪtəd/. 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 "decaffeinated"?
From de- + caffeine + -ated or de- + caffeinated. 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 "decaffeinated", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

climatologist#88,212battlecruiser#88,103interspecific#88,469unsentimental#87,947

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

Source: FrequencyWords open word-frequency list