flaky

adjective
1
tending to break into small, thin pieces
لایه‌لایه, پوسته‌پوسته
2
behaving in a strange or unusual way; tending to forget things
عجیب‌الخلق, فراموش‌کار, دمدمی مزاج, نامنظم
He plays a flaky tourist visiting Europe.
3
that does not work well or often stops working
ناپایدار, غیرقابل اعتماد, بی‌ثبات
I found the software a bit flaky.
I had problems with a flaky internet connection.