harebrained 1adjectivedomain: all adjPrinceton WordNet [ver.3.1]EnglishDefinitionvery foolishReport errorPath to highest hypernymMorphologySynset graphExamples1.a completely mad scheme to build a bridge between two mountains2.harebrained ideas3.took insane risks behind the wheelSynonymsinsane 2very foolishmad 4very foolish