unlike
Americanadjective
preposition
-
dissimilar to; different from.
She is unlike my sister in many ways.
-
not typical or characteristic of.
It is unlike her to enjoy herself so much.
noun
adjective
-
not alike; dissimilar or unequal; different
-
archaic unlikely
preposition
Other Word Forms
Etymology
Origin of unlike
First recorded in 1150–1200, unlike is from the Middle English word unlik. See un- 1, like 1
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.
These materials contain chemical bonds that certain microorganisms can potentially break down, unlike the more resistant structures found in many conventional plastics.
From Science Daily ● Oct. 16, 2026
A key characteristic of Green SM is that it employs all its professional drivers as full-time, W-2-based employees, unlike Uber and Lyft’s gig-worker model.
From Los Angeles Times ● Oct. 13, 2026
Its standard fare—which, unlike many airlines, is also available in premium economy—includes cosmetic products from celebrity facialist Joanna Vargas.
From The Wall Street Journal ● Oct. 12, 2026
"An example of the 'perfectly normal' coexistence" between the two faiths is "the Bolsonaro family," Pastor Gustavo Knauer told AFP, noting that unlike Flavio, Jair is Catholic.
From Barron's ● Oct. 12, 2026
When they are threatened, their response is… well… quite unlike other forest creatures’—and most especially unlike a fox’s.
From "The Undead Fox of Deadwood Forest" by Aubrey Hartman
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.