1. Actions or methods performed without proper attention, care, or consideration; work done in a sloppy or inattentive manner
The careless practices in the laboratory led to contaminated samples.
As práticas negligentes no laboratório levaram a amostras contaminadas.
2. Professional or business conduct characterized by lack of diligence, attention to detail, or proper procedure
The company was fined for careless practices in handling hazardous materials.
A empresa foi multada por práticas negligentes no manuseio de materiais perigosos.