sloppy
Definitions
Careless and unsystematic; excessively casual.
Messy or untidy in appearance or work.
Wet and slushy, typically referring to ground or weather conditions.
Examples
The student received a poor grade because his handwriting was incredibly sloppy.
You should double-check your work to ensure there are no sloppy mistakes.
The painter did a sloppy job and left drips of paint all over the floor.
Synonyms
messy untidy careless slovenly slipshod disorganized slapdash