color blindness

/ˈkʌl.ɚ.blaɪnd.nəs/

//ˈkʌl.ɚ.blaɪnd.nəs// noun

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

The verdict

“color blindness” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
15
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Any of several medical conditions in which the physical ability to see colors is impaired, especially achromatopsia or Daltonism.

Corpus desk

Index EN-color-blindness · color blindness · English

color blindness · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 15 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" thin
  • PHOTO-UNK Peer pending

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.

Key facts for color blindness
PropertyValue
Headwordcolor blindness
LanguageEnglish
Part of speechNoun
IPA/ˈkʌl.ɚ.blaɪnd.nəs/
Letters15
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “color blindness” in English

color blindnessfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

color blindness is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈkʌl.ɚ.blaɪnd.nəs/. Rarity is why readers land here mid-draft. 2 senses are on record.

Our edit-distance generator produced no likely misspellings for color blindness, and the word's spelling is regular enough that our generator found nothing worth flagging. 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 color blind + -ness or color + blindness. The correct English form is color blindness, spelled C-O-L-O-R- -B-L-I-N-D-N-E-S-S.

Definition

  1. 1
    Any of several medical conditions in which the physical ability to see colors is impaired, especially achromatopsia or Daltonism.
  2. 2
    An indifference to a person's skin color or race.

Recorded use

Wiktionary example

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

  1. Despite the fact that race is embedded in American social life, "color blindness" has recently emerged as the dominant ideology of race.

Etymology

From color blind + -ness or color + blindness.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "color blindness"?
"color blindness" is spelled C-O-L-O-R- -B-L-I-N-D-N-E-S-S. The IPA pronunciation is /ˈkʌl.ɚ.blaɪnd.nəs/.
What does "color blindness" mean?
As a noun, "color blindness" means: Any of several medical conditions in which the physical ability to see colors is impaired, especially achromatopsia or Daltonism.
How do you pronounce "color blindness"?
The IPA (International Phonetic Alphabet) transcription for "color blindness" is /ˈkʌl.ɚ.blaɪnd.nəs/. 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 "color blindness"?
From color blind + -ness or color + blindness. 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.

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

Source: FrequencyWords open word-frequency list