Bulgarian-English translations for безсистемен

• desultory
  He wandered round, cleaning up in a desultory way
  I teach a class of desultory minds
  I made a desultory remark while I was talking to my friend
• discursive
• haphazard
  Do not make such haphazard changes to the settings; instead, adjust the knobs carefully, a bit at a time
• indiscriminate
  How can anyone be so indiscriminate in making friends as he is?