Synonyms of blue moon

blue moon

noun

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

• forever
• months
• long
• age
• moon
• coon's age
• donkey's years
• eternity
• cycle
• eon
• infinity
• lifetime

Antonyms & Near Antonyms

• second
• split second
• minute
• instant
• moment
• flash
• shake
• wink
• twinkle
• twinkling
• jiffy
• trice
• nanosecond
• microsecond

Example Sentences

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