Definition Of colourless
(especially of a gas or liquid) without color.
At room temperature and standard pressure ethers are colorless , neutral liquids with pleasant odors.
lacking distinctive character or interest; dull.
the book is rather colorless, like its author
Example Of colourless
At room temperature, formaldehyde is an extremely reactive colorless gas with a suffocating odor.
Because carbon dioxide is colorless , odorless and disperses immediately into the air, few realize how much spills out of tailpipes and smokestacks.
Beyond that, her soprano is strangely colorless , and her projection of the text flat and matter-of-fact.
Carbon monoxide injuries and deaths occur when levels of the tasteless, odorless and colorless gas build up in poorly ventilated spaces where a carbon-based fuel is burned.
Carbon monoxide is colourless and odourless, and is produced when gas fails to burn completely.