nnoun.personsomeone deranged and possibly dangerousDomain Usage:colloquialism
Synset:looney loony nutcase weirdo
Hypernyms:lunatic madman maniac
Inherited Hypernyms:crazylunaticsick personunfortunatepersoncausal agentphysical entityentity
Inherited Hypernyms:crazylunaticsick personunfortunatepersonorganismliving thingwholeobjectphysical entityentity
adj satadj.allaffected with madness or insanitySynset:brainsick demented disturbed mad sick unbalanced unhinged
Antonyms:sane
Derivationally Related Form:sickcrazinesscrazedementednessmadness
Inherited Hypernyms:brainsick
Similar to:insane
adj satadj.allfoolish; totally unsoundDomain Usage:colloquialism
Synset:half-baked screwball softheaded
Examples:- a crazy scheme
- half-baked ideas
- a screwball proposal without a prayer of working
Antonyms:practical
Derivationally Related Form:crazinessscrewball
Inherited Hypernyms:crazy
Similar to:impractical
adj satadj.allpossessed by inordinate excitementDomain Usage:colloquialism
Examples:- the crowd went crazy
- was crazy to try his new bicycle
Antonyms:unexcited
Derivationally Related Form:craziness
Inherited Hypernyms:crazy
Similar to:excited
adj satadj.allbizarre or fantasticExamples:- had a crazy dream
- wore a crazy hat
Antonyms:familiar
Inherited Hypernyms:crazy
Similar to:strange unusual
adj satadj.allintensely enthusiastic about or preoccupied withDomain Usage:colloquialism
Synset:dotty gaga wild
Examples:- crazy about cars and racing
- they are dotty about each other
- gaga over the rock group's new album
Antonyms:unenthusiastic
Derivationally Related Form:crazinesscraze
Inherited Hypernyms:crazy
Similar to:enthusiastic