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   In·san·i·ty

   /inˈsanədē/

   

   noun

   • 1. the state of being seriously mentally ill; madness: "he suffered from bouts of insanity" Similar mental illnessmental disordermental derangementmadnessinsanenessdementiadementednesslunacyinstabilityunsoundness of mindloss of reasondeliriumhysteriamaniapsychosisinformal:crazinessarchaic:crazednessrare:delirationOpposite sanity
   • ▪ extreme foolishness or irrationality: "it might be pure insanity to take this loan" Similar follyfoolishnessfoolhardinessidiocystupidityimbecilityasininitylunacymadnesssillinesssenselessnessbrainlessnessthoughtlessnessirrationalityillogicalityabsurdityludicrousnessridiculousnessinformal:crazinessdaftnessOpposite sense

   Word Origin late 16th century: from Latin insanitas, from insanus (see insane).

   Scrabble Points: 11

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