Adjective: lunatic loo-nu-tik
- Insane and believed to be affected by the phases of the moon
"In folklore, werewolves were said to become lunatic during a full moon";
- moonstruck
- An insane person
"The homeless lunatic muttered to himself as he wandered the streets";
- maniac, crazy [N. Amer, informal], loony [informal], looney [informal], nutcase [informal], headcase [informal]
- A reckless impetuous irresponsible person
"Only a lunatic would drive so fast in this weather";
- daredevil, madcap, hothead, swashbuckler, harum-scarum
Derived forms: lunatics
See also: insane
Type of: adventurer, diseased person, sick person, sufferer, venturer
Encyclopedia: Lunatic