BLUE MOON Synonyms: 27 Similar and Opposite Words

blue moon

noun

Definition of blue moon

as in forever

a long or seemingly long period of time once in a blue moon we'll get dressed up and eat in a fancy restaurant

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of blue moon However, there’s another type of blue moon. — Hali Smith may 30, Idaho Statesman, 30 May 2026 North Carolina sky gazers will get a chance to see the only blue moon of the year later this month, though catching it will require an early wake-up call. — Charlotte Observer, 29 May 2026 The last blue moon was on August 31, 2023, and the next one will come on December 31, 2028, according to EarthSky. — Connor Greene, Time, 29 May 2026 The second of these moons is called a blue moon — a calendrical blue moon, to be precise. — Avni Trivedi, CNN Money, 29 May 2026 See All Example Sentences for blue moon

Recent Examples of Synonyms for blue moon

Noun

There is a certain ease and flow to the conversation with your forevers.

— Barbara Ellis, Denver Post, 17 May 2026
Miami trailed 1-0 fast, in the sixth minute, when the defense left Guilherme Biro unmarked for a downward header off a corner kick, gifting Biro the forever-history of the first goal in the new stadium.

— Miami Herald, Miami Herald, 5 Apr. 2026

Definition of forever

Noun

Current facial recognition systems, originally developed for photographs, can compare faces despite differences in pose, lighting, expression, age, and image quality.

— Karen Chernick, ARTnews.com, 21 Oct. 2026
Other foldables do this too — Samsung and Google and Huawei have been pushing the envelope of gadget-y smartphones for ages — but Apple’s played it so safe for so long that the Duo is legitimately surprising.

— Nilay Patel, The Verge, 21 Oct. 2026

Definition of age

Noun

The robotic Griffin lunar lander has passed a host of critical tests ahead of its first-ever moon mission, which is scheduled to launch later this year.

— Chelsea Gohd, Space.com, 23 Oct. 2026
Japan launched a $578 million mission Monday on a five-year expedition to land on the largest moon of Mars and retrieve samples for return to Earth, Ars reports.

— Eric Berger, ArsTechnica, 23 Oct. 2026

Definition of moon

Browse Nearby Words

blue laws

blue moon

blue moons

See all Nearby Words

Articles Related to blue moon

Cite this Entry

Style

“Blue moon.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/blue%20moon. Accessed 26 Oct. 2026.

Copy Citation

Synonyms of blue moon

noun

Example Sentences

Browse Nearby Words

'Blue Moon,' 'Wolf Moon,' and Other...

Words of the Week - Aug. 4

Words With London Origins

Cite this Entry

More from Merriam-Webster

Word of the Day

disparate

Popular in Grammar & Usage

Merriam-Webster’s Great Big List of Words You Love to Hate

'Can' vs. 'May'

'Affect' vs. 'Effect'

More Commonly Mispronounced Words

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

12 Lovely and Unusual Words for the Natural World

Why do we 'bury the lede?'

'Za' and 9 Other Words to Help You Win at SCRABBLE

Popular

Merriam-Webster’s Great Big List of Words You Love to Hate

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes