Desultory

беспорядочный

besporjadočnyj

(jumping, or passing, from one thing or subject to another, without order or rational connection)

несвязанный

nesvjazannyj

(jumping, or passing, from one thing or subject to another, without order or rational connection)

несвязный

nesvjaznyj

(out of course; by the way; not connected with the subject)