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# colourless

adjective (colourless; US «colorless»)

«colourless» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Colourless means having no colour at all, like clear water or air. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#m1)
2. Colourless can mean pale and grey: «a colourless face». [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#m2)
3. Colourless can mean dull and boring, with nothing interesting: «a colourless town». [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#m3)

### In the lessons

In science lessons, many gases (oxygen, carbon dioxide) and liquids (water) are colourless; pupils learn that colourless is not the same as invisible or safe, as some colourless gases are poisonous. In stories, a colourless person is dull or shy. Phrases: «colourless liquid», «colourless gas», «colourless and odourless».

### Examples

- Water is a colourless liquid. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#x1)
- Oxygen is a colourless gas with no smell. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#x2)
- After the shock, her face was colourless. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#x3)
- The old town felt grey and colourless. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#x4)
- Carbon monoxide is colourless and deadly, so homes need alarms. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#x5)
- Mix the colourless solution with the indicator and watch it turn pink. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/#x6)

### Note

British spelling «colourless»; US «colorless». Colourless means «no colour», but «clear» and «transparent» mean you can see through it; a colourless liquid is usually clear. Safety trap: a colourless liquid in a bottle may not be water.

## On Mova

- [Trees and pragmatics of «colourless» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/C/colourless/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«colourless» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/colourless.html) on Mova free.