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
• moon
• age
• eternity
• coon's age
• donkey's years
• eon
• cycle
• aeon
• infinity
• lifetime

Antonyms & Near Antonyms

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