Furniture made from inferior materials breaks quickly.
This shop has a reputation for selling shoddy goods.
Shoddy products are circulating in the market.
This shop's merchandise has a bad reputation for being poor quality.
Furniture made from cheap materials breaks quickly.
粗雑 stresses carelessness or roughness in how something is made or done, while 粗悪 stresses the poor inherent quality of the material or goods.
粗悪 refers purely to poor physical quality with no moral implication, while 悪質 in this sense also carries a hint of dishonesty behind the poor quality.
粗悪 describes shoddy, cheaply-made goods, whereas 不良 is a general technical term that can apply to any defective condition, not just manufacturing quality.
粗野 describes crude or boorish behavior/manners, while 粗悪 describes crude or inferior physical material or goods.
inferior goods; faulty item
Compound of 粗 (rough, coarse) and 悪 (bad, inferior). The exact historical derivation is uncertain, but the meaning follows directly from the kanji components.