Thanks for using this online dictionary, we have been helping millions of people improve their use of the Sinhala language with its free online services. English meaning of උන්මත්ත is as below...

උන්මත්ත : උන්මත්ත, lit, insane, poisonous: several species of the datura, so called because of their poisonous nature, see and උතක්‍ෂිප්ත and අත්තන.