acid·​u·​lous | \ ə-ˈsi-jə-ləs How to pronounce acidulous (audio) \

Definition of acidulous

: somewhat acid or harsh in taste or manner

Keep scrolling for more

Synonyms for acidulous


acid, acidic, sour, sourish, tart, tartish, vinegary

Visit the Thesaurus for More 

Examples of acidulous in a Sentence

a slightly acidulous drink that is far more refreshing than the overly sweet iced tea that is also available a gently acidulous writing style that never becomes annoying

Recent Examples on the Web

Sourced from Provence, the purple plant is balanced out by acidulous Italian bergamot and spicy-sweet tonka bean. Lauren Valenti, Vogue, "The 7 New Fragrances to Know This Summer," 6 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acidulous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of acidulous

1674, in the meaning defined above

History and Etymology for acidulous

borrowed from Latin acidulus "slightly sour," from acidus "sour" + -ulus, attenuating suffix — more at acid entry 2

Keep scrolling for more

Learn More about acidulous

Statistics for acidulous

Last Updated

13 Jun 2019

Look-up Popularity

Time Traveler for acidulous

The first known use of acidulous was in 1674

See more words from the same year

Keep scrolling for more

More Definitions for acidulous


acid·​u·​lous | \ ə-ˈsij-ə-ləs How to pronounce acidulous (audio) \

Medical Definition of acidulous

: somewhat acid to the taste

More from Merriam-Webster on acidulous

Thesaurus: All synonyms and antonyms for acidulous

Comments on acidulous

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


appealing forcibly to the mind or reason

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!


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!