lunacy

[1]	madness , madness , insaneness , insanity , dementia , craziness , derangement , psychosis , mania
[2]	folly , folly , foolery , foolishness , bad/poor judgement , tomfoolery , craziness , illogicality , illogic , indulgence , senselessness , ridiculousness , irrationality , foolhardiness , stupidity