unsaturated
adjective
un·sat·u·rat·ed
ˌən-ˈsa-chə-ˌrā-təd 
: not saturated: such as
a
: capable of absorbing or dissolving more of something
an unsaturated solution
b
: able to form products by chemical addition
especially
: having at least one double or triple bond between carbon atoms in a hydrocarbon chain
—used especially of an oil, fat, or fatty acid
unsaturated fatty acids
see also unsaturated fat compare saturated sense 2b
Examples of unsaturated in a Sentence
Recent Examples on the Web
Opt for healthy unsaturated fats, such as avocado, olive oil, and fish.
—
Sohaib Imtiaz, Verywell Health, 14 Jan. 2026
Fiber, protein, and unsaturated fats are key ingredients for a heart-healthy breakfast.
—Caitlin Beale, Health, 7 Jan. 2026
Most foods naturally contain both saturated and unsaturated fats.
—Lauren J. Young, Scientific American, 7 Jan. 2026
Our food choices in our thirties can impact our disease risk down the line, as shown in recent research that found those who eat fruits, vegetables, whole grains, unsaturated fats, nuts, and legumes in early adulthood are more likely to enter their seventies free of chronic diseases.
—Emma Loewe, Outside, 1 Jan. 2026
See All Example Sentences for unsaturated
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Sohaib Imtiaz, Verywell Health, 14 Jan. 2026
Fiber, protein, and unsaturated fats are key ingredients for a heart-healthy breakfast.
—Caitlin Beale, Health, 7 Jan. 2026
Most foods naturally contain both saturated and unsaturated fats.
—Lauren J. Young, Scientific American, 7 Jan. 2026
Our food choices in our thirties can impact our disease risk down the line, as shown in recent research that found those who eat fruits, vegetables, whole grains, unsaturated fats, nuts, and legumes in early adulthood are more likely to enter their seventies free of chronic diseases.
—Emma Loewe, Outside, 1 Jan. 2026
See All Example Sentences for unsaturated
Cite this Entry
“Unsaturated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsaturated. Accessed 17 Jan. 2026.
Copy CitationKids Definition
unsaturated
adjective
un·sat·u·rat·ed
ˌən-ˈsach-ə-ˌrāt-əd
ˈən-
: not saturated: as
a
: capable of absorbing or dissolving more of something
an unsaturated solution
b
: able to form products by combining chemically with other substances
especially
: containing double or triple bonds between carbon atoms
an unsaturated fat
Medical Definition
unsaturated
adjective
un·sat·u·rat·ed
-ˈsach-ə-ˌrāt-əd
: not saturated: as
a
: capable of absorbing or dissolving more of something
an unsaturated solution
b
: able to form products by chemical addition
especially
: having at least one double or triple bond between carbon atoms in a hydrocarbon chain
—used especially of an oil, fat, or fatty acid
unsaturated fatty acids
see also unsaturated fat compare saturated sense 2
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