1.
irresponsible, sloppy, half-hearted
Describes careless, unreliable behavior or work done without proper attention.
2.
enough already, cut it out
Used to express frustration and demand that someone stop what they're doing.
Related Words
Compare:
適当 (suitable)
Related:
手を抜く (to cut corners, to slack off)
Related:
不真面目 (insincere)
Compare:
無責任な (irresponsible)
Compare:
雑な (careless)