lunacy
/ˈluː.nə.si/ noun C2- A cyclical mental disease, apparently linked to the lunar phases.
- Insanity implying legal irresponsibility.
- Something deeply misguided.
Plural lunacies
From the library
It's pure lunacy."
Sherlock Holmes, the well-known consulting expert, have each come to the conclusion that the grotesque series of incidents, which have ended in so tragic a fashion, arise from lunacy rather than from deliberate crime.
Learn lunacy in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.