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

Carbon monoxide is a deadly, colorless, odorless, poisonous gas, according to the United States Consumer Product Safety Commission website. —Cathy Kozlowicz, jsonline.com, 14 Aug. 2025

Melinda Maria only uses top-tier stones that are cut and polished like fine diamonds, with ideal proportions, D color (completely colorless), and flawless or near-flawless clarity. —Yola Robert, Forbes.com, 8 Aug. 2025

Consistent, colorless stones equivalent to a 'D’ grade diamond with internally flawless clarity; these are qualities that would be astronomically expensive and exceptionally rare if found in natural diamonds. —Pooja Shah, Forbes.com, 7 Aug. 2025

Radon, a colorless and odorless gas that comes from the breakdown of radioactive materials in soil, seeps upward through cracks and holes in houses and becomes trapped inside. —Nick Rosenberger, Idaho Statesman, 22 Apr. 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