[adjective] -ier, -iest - (of a situation) unpleasant because of a connection with immoral things such as dishonesty, violence and illegal sexThe film vividly portrays the seamy side of life in the London of the early 70s.He did not want to be involved in the seamier side of the gaming world.
SEAMY
Meaning of SEAMY in English
Cambridge English vocab. Кембриджский английский словарь. 2012