1. ಬೆಳ್ತನ

    ♪ beḷtana
      noun
    1. lack of understanding sense; folly; foolishness; stupidity.
    2. the tendency, act or an instance of cheating.

  2. ಭೋಳೆತನ

    ♪ bhōḷetana
      noun
    1. the quality of being unaffected, simple; artlessness; childlike innocence.
    2. lack of good sense, good judgement; foolishness; stupidity.