slapdash
🇺🇸
/ˈslæpdæʃ/
🇬🇧
/ˈslæpdæʃ/
done without much attention to detail or care
The painter did a slapdash job on the walls, leaving streaks of color behind.
画家は壁に手荒な仕事をして、色のストライプを残した。