san·guin·e·ous | \san-ˈgwi-nē-əs, saŋ-\

Definition of sanguineous 

1 : bloodred

2 : of, relating to, or involving bloodshed : bloodthirsty

3 : of, relating to, or containing blood

Keep scrolling for more

Did You Know?

Sanguineous isn't the only English adjective to come from "sanguis," the Latin word for "blood." "Sanguine," for one, has been with us since the 14th century. Nowadays, it usually means "confident" or "optimistic," but it can also mean "ruddy." (The "optimistic" sense stems from the medieval belief that a healthy red complexion denoted a courageous and hopeful temperament.) "Sanguineous" first appeared in the 16th century as a synonym of the "ruddy" sense of "sanguine," but now it's more often used in medical or scientific references to blood. It shares another sense - "bloodthirsty" or "involving bloodshed" - with "sanguinary," yet another "sanguis" descendant."

Examples of sanguineous in a Sentence

in the sanguineous culture of ancient Sparta, military glory was prized above all else

First Known Use of sanguineous

circa 1520, in the meaning defined at sense 1

History and Etymology for sanguineous

Latin sanguineus

Keep scrolling for more

Learn More about sanguineous

Share sanguineous

Listen to Our Podcast about sanguineous

Statistics for sanguineous

Look-up Popularity

Time Traveler for sanguineous

The first known use of sanguineous was circa 1520

See more words from the same year

Keep scrolling for more

More Definitions for sanguineous


san·guin·eous | \saŋ-ˈgwin-ē-əs, san- \

Medical Definition of sanguineous 

1 : of, relating to, or containing blood

2 : sanguine sense 2 a sanguineous temperament

More from Merriam-Webster on sanguineous

See words that rhyme with sanguineous

Thesaurus: All synonyms and antonyms for sanguineous

Comments on sanguineous

What made you want to look up sanguineous? Please tell us where you read or heard it (including the quote, if possible).


to reject or criticize sharply

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
True or False

Test your knowledge - and maybe learn something along the way.

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!