colorless

adjective

col·​or·​less ˈkə-lər-ləs 

: lacking color: such as

a

: pallid, blanched

a colorless complexion

b

: dull, uninteresting

colorless prose

colorlessly adverb

colorlessness noun

Synonyms of colorless

• white
• transparent
• faded

Examples of colorless in a Sentence

since we can't decide what color to paint the doghouse, our latest home project remains colorless for the time being

page after page of colorless prose without even one neat turn of phrase

Recent Examples on the Web

Black and White Photos When highlighting your walls with art, black-and-white imagery may seem boring, but there are many shades between black and white that add nuance to colorless photography. —Jennifer Prince, Southern Living, 15 Feb. 2026

Mercaptan, a colorless odorant, was released during routine maintenance at Energy Transfer’s Arlington odorization station, according to a company statement. —Elissa Jorgensen, Dallas Morning News, 10 Feb. 2026

Building up a database To make the cosmic dust, Losurdo started with nitrogen, carbon dioxide and acetylene — a colorless, odorless gas made up of carbon and hydrogen. —Jacopo Prisco, CNN Money, 6 Feb. 2026

Carbon monoxide is a colorless, odorless and tasteless poisonous gas that at high levels can cause loss of consciousness and death. —Alexandra Koch, FOXNews.com, 5 Feb. 2026

Word History

First Known Use

14th century, in the meaning defined above

Kids Definition

colorless

adjective

col·​or·​less ˈkəl-ər-ləs 

1

: lacking color

a colorless liquid

2

: dull entry 1 sense 8

colorless writing

colorlessly adverb

colorlessness noun