Meaning & use
unsanitary or insanitary
Last updated
Meanings
adjectivenot comparable
Dirty in a way that is likely to spread disease or harm health.
Grammar: Usually used before a noun or after 'be': unsanitary conditions; the kitchen was unsanitary.
Patterns
- unsanitary conditions
- unsanitary living conditions
- it is unsanitary to do something
Health inspectors closed the restaurant because of unsanitary conditions in the kitchen.
The camp had no clean water, and the toilets were unsanitary.
It is unsanitary to leave cooked food out for hours.
adjectivenot comparablemedical
Not clean enough for safe medical or personal care.
Grammar: Common in medical contexts, often before nouns such as 'practice' or 'conditions'.
Patterns
- insanitary practice
- unsanitary equipment
Nurses reported insanitary equipment in the old clinic.
Using the same needle twice is an unsanitary practice that spreads infection.
Common combinations
- unsanitary conditions
- Workers complained about unsanitary conditions in the factory bathrooms.
- insanitary living conditions
- The report described insanitary living conditions in the overcrowded housing.
- filthy and unsanitary
- The drains were filthy and unsanitary after the flood.
- unsanitary practice
- Reusing towels without washing them is an unsanitary practice.
Synonyms and how they differ
- unhygienic
- Very close in meaning and common in British English; it often focuses on personal habits rather than whole conditions.
- dirty
- General and informal; it does not by itself suggest a risk of disease the way 'unsanitary' does.
- filthy
- Much stronger and more emotional; it describes extreme dirt rather than a health risk.
Opposites
Word family
- sanitary adjective
- Clean and safe for health; the opposite of unsanitary.
- sanitation noun
- Systems for keeping places clean, such as sewers and rubbish collection.
- sanitize verb
- To clean something thoroughly to remove germs.
Commonly confused: unsanitary or insanitary or insanitary? unsanitary or insanitary or insanity?
unsanitary or insanitary vs insanitary
This is the British spelling of the same word; 'unsanitary' is standard in American English.
unsanitary or insanitary vs insanity
'Insanity' is a noun meaning serious mental illness; it sounds similar but has nothing to do with dirt.
Practice
An American health report would most likely write: 'The inspectors found ______ conditions in the kitchen.'
Choose one answer.
American English normally uses 'unsanitary', while British English prefers 'insanitary'. Both are correct words, but a US report would choose 'unsanitary'.
Make it your own
Write a sentence using “unsanitary or insanitary”, then check it and compare it with the examples above.