colorless
Americanadjective
-
without color.
Pure water is colorless.
-
pallid; dull in color.
a colorless complexion.
-
lacking vividness or distinctive character; dull; insipid.
a colorless description of the parade.
- Synonyms:
- lackluster, drab, dreary, unexciting
-
unbiased; neutral.
Other Word Forms
Etymology
Origin of colorless
Middle English word dating back to 1350–1400; see origin at color, -less
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The noble gas—completely colorless, odorless, and tasteless—is used in rocket propulsion.
From Barron's ● May 28, 2026
The colorless gas can harm the respiratory system of sensitive individuals, according to the Environmental Protection Agency.
From The Wall Street Journal ● May 21, 2026
Ethylene oxide is a colorless gas often used in the sterilization of medical devices, particularly those that can’t be cleaned using steam or radiation.
From Los Angeles Times ● May 14, 2026
Contrary to popular belief, space food isn’t just freeze-dried packages or long tubes of bland, colorless and soulless slop.
From Salon ● Apr. 10, 2026
When any one spoke to him he invariably laughed in an agreeable, colorless way.
From " The Great Gatsby" by F. Scott Fitzgerald
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
