It means something dangerous where you shouldn't get in.
Unsightly or appearance. Example lives in a seedy House
seedy it is incorrectly written and it should be written as "Poor quality." being its meaning: Any product of medium to poor quality. A not-so-thick fabric may be your fabric. (This is hooked by the loose strands or loose ) A pottery that I not reach the point of ovens, exact cooking, by which it breaks very easy.
Bad death.-cruel, painful, suffering: " Commander Linares had been hunted down as a critter and seedy dead by the montonera " Extracted from the book "The language of the Argentines, claim of thought, expression and the word "