1 ugly

1 ignorant

2 ill-informed

1 simple and crude

1 corrupt practice

2 bad habits

3 malpractice

1 shallow and crude

2 meager (knowledge or skill)

1 sordid and contemptible (idiom); vile and repulsive (esp. character or action)

1 crude but simple methods (idiom); use whatever methods you can

2 to do things simply and thriftily

3 It's not pretty but it works.