Meaning of the word "a month of Sundays" in English

What does "a month of Sundays" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a month of Sundays

US /ə mʌnθ əv ˈsʌn.deɪz/
UK /ə mʌnθ əv ˈsʌn.deɪz/
"a month of Sundays" picture

Idiom

1.

a very long period of time

Example:
I haven't seen him in a month of Sundays.
It will be a month of Sundays before they finish that project.
Learn This Word at Lingoland