black letter days

A form of black letter day — A day marked in ancient calendars in black letter, as distinguished from the more important red letter days; an inauspicious day.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

noun
  1. pluralplural of black letter day
Cite this entry
APA

black letter days. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/black%20letter%20days

MLA

“black letter days.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/black%20letter%20days. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “black letter days,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/black%20letter%20days.

Source: black letter days on Wiktionary, CC BY-SA 4.0.