なし崩し

なしくずしnashikuzushi

noun

1. paying back in installments (instalments)
2. amortization plan (amortisation)
3. gradual progression (oft. into an unwanted state)
4. doing little by little
5. steady development
6. continual advancement
7. proceeding in a continual and vague fashion
8. gradually obscuring

Study it in Yanamino