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

• 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

The colorless liquid is now responsible for an ongoing health crisis that has triggered a nationwide panic affecting about 100 million people across six states in Brazil, according to health authorities. —Alessandra Freitas, CNN Money, 12 Oct. 2025

Often the liquid solvent used is propylene glycol — a viscous, colorless liquid with a slightly sweet flavor. —Gabrielle Emanuel, NPR, 10 Oct. 2025

This naturally occurring gas is odorless and colorless, but also radioactive. —Laura Baisas, Popular Science, 9 Oct. 2025

Authorities also found vials of nitromethane, a colorless, organic compound used in explosive devices, the court records showed. —Ashleigh Fields, The Hill, 7 Oct. 2025

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