color blindness: meaning, definition, pronunciation and examples
B2Formal, Technical, and Figurative
Quick answer
What does “color blindness” mean?
A physiological condition where a person has difficulty distinguishing between certain colours, most commonly red and green.
Audio
Pronunciation
Definition
Meaning and Definition
A physiological condition where a person has difficulty distinguishing between certain colours, most commonly red and green.
The inability or refusal to perceive differences or discrimination based on race, ethnicity, or other social categories; a metaphorical extension of the medical condition.
Dialectal Variation
British vs American Usage
Differences
UK spelling is 'colour blindness', US spelling is 'color blindness'. The hyphenated form 'colour-blind' is preferred in adjectival use (UK). The US often uses 'colorblind' as one word, especially as an adjective.
Connotations
Similar across both varieties, though the metaphorical use is slightly more prevalent in US socio-political discourse.
Frequency
The term is common in both varieties. The medical sense is used with equal frequency; the figurative sense may appear more frequently in US media and academic writing on race.
Grammar
How to Use “color blindness” in a Sentence
suffer from + colour blindnessdiagnose + [someone] with + colour blindnessadvocate for + colour blindness (fig.)be + colour-blind to + [issue] (fig.)Vocabulary
Collocations
Examples
Examples of “color blindness” in a Sentence
verb
British English
- No direct verb form. Use 'to be colour-blind'.
American English
- No direct verb form. Use 'to colorblind' as a verb is non-standard and rare.
adverb
British English
- No standard adverb form. Use 'in a colour-blind way/manner'.
- The system operates almost colour-blindly.
American English
- No standard adverb form. Use 'in a colorblind way'.
- They hired applicants colorblindly.
adjective
British English
- He is colour-blind.
- A colour-blind approach to policy.
American English
- He is colorblind.
- She advocates for a colorblind society.
Usage
Meaning in Context
Business
Rare, except in contexts of inclusive design or accessibility compliance (e.g., 'We need colour-blind-friendly charts').
Academic
Common in both medical journals (ophthalmology, genetics) and social sciences (sociology, critical race theory).
Everyday
Used to describe the medical condition. The figurative use is common in discussions of politics and equality.
Technical
Precise in ophthalmology (e.g., 'protanopia', 'deuteranopia'). Used descriptively in sociology.
Vocabulary
Synonyms of “color blindness”
Strong
Neutral
Weak
Vocabulary
Antonyms of “color blindness”
Watch out
Common Mistakes When Using “color blindness”
- Misspelling: 'colorblindness' as one word is common but not standard in formal UK English. Misapplication: Using 'colour blindness' to mean literal blindness (total lack of sight). Overextension: Using the figurative term without clarifying context, leading to ambiguity.
FAQ
Frequently Asked Questions
No, there is currently no cure for inherited colour blindness. However, special lenses and apps may help some people distinguish colours better.
They are synonyms for the medical condition. 'Daltonism' (after scientist John Dalton) is an older term still used in some languages (like Russian 'дальтонизм') but is less common in modern English.
It is highly context-dependent and debated. Proponents view it as a positive ideal of equality. Critics view it as a negative, unrealistic stance that ignores systemic racism and lived experiences of difference.
As an adjective, it is often written as one word, especially in American English ('colorblind'). The noun form is typically two words ('color blindness'). British English more consistently uses the hyphenated adjectival form 'colour-blind'.
A physiological condition where a person has difficulty distinguishing between certain colours, most commonly red and green.
Color blindness is usually formal, technical, and figurative in register.
Color blindness: in British English it is pronounced /ˈkʌlə ˌblaɪnd.nəs/, and in American English it is pronounced /ˈkʌl.ɚ ˌblaɪnd.nəs/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “see the world in black and white (related to monochromacy)”
- “turn a blind eye (related concept of ignoring difference)”
Learning
Memory Aids
Mnemonic
Think: 'COLOUR' is missing for the 'BLIND' eye - Colour Blindness.
Conceptual Metaphor
PERCEPTUAL DEFICIENCY IS MORAL/SOCIAL DEFICIENCY (for the figurative sense). IGNORANCE IS BLINDNESS.
Practice
Quiz
Which of the following is the most accurate description of the term 'colour blindness' in its figurative sense?