Thesaurus.com
Dictionary.com
Definitions

blue moon

[bloo moon] / ˈblu ˈmun /
NOUN
long period of time
Synonyms


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.

Wright: Every blue moon, they would be in a good mood.

From Los Angeles Times • Apr. 16, 2025

Once in a blue moon, a person is willing to do the hard internal work that leads to real, sustainable change.

From Salon • Mar. 21, 2025

It's a phenomenon - or, to use Chappell's terminology, a Femininomenon - that only occurs once in a blue moon.

From BBC • Sep. 13, 2024

Despite being called a blue moon, the moon doesn't actually turn blue.

From BBC • Aug. 19, 2024

With the flour and oil she got from trading eggs, Miss Maggie baked bread that made me happier than if I’d had cake, which I tasted only once in a blue moon.

From "Beyond the Bright Sea" by Lauren Wolk




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "blue moon" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com