IdiomNatureEnglish

promise the moon

Meaning: To promise something impossible to deliver.

Example: “Every candidate promises the moon, and then the potholes stay.”

Origin: The moon as the symbol of the unreachable; "to cry for the moon," wanting the impossible, is older. The form with "promise" is common from the 20th century.

Equivalents in other languages

More English idioms

Explore another collection: Proverbs

Short sayings of timeless wisdom from more than 50 cultures, each with its meaning and origin.

Browse all proverbs →

Keep exploring

Explore all idioms →