red-letter

American  

[red-let-er] / ˈrɛdˈlɛt ər /

adjective

1. marked by red letters, as festival days in the church calendar.

2. memorable; especially important or happy.

   a red-letter day in his life.

3. (of a Bible) having the quoted words of Jesus appear in red type.

   a red-letter edition;

   the red-letter New Testament presented at her baptism.

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Etymology

Origin of red-letter

First recorded in 1660–70

Example Sentences

This was a red-letter day for Adelaide-born Head as he scored a stunning century in front of a packed crowd on familiar territory.

From BBC • Dec. 7, 2024

Could Feb. 15 be a red-letter day for Nikki Haley?

From Washington Times • Feb. 7, 2023

Saturday was a red-letter day for the history of art in Southern California.

From Los Angeles Times • Jun. 21, 2022

“The eventual purchaser will be able to steward them into publication, which will be a red-letter day for Brontë scholarship,” he said.

From Seattle Times • Mar. 30, 2022

It was such a red-letter day that I even went and got my first barbershop conk.

From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey