flaky

US /ˈfleɪ.ki/
UK /ˈfleɪ.ki/
"flaky" picture
1.

breaking or separating easily into small, thin pieces

:
The pastry was perfectly flaky and golden brown.
Her skin gets very dry and flaky in the winter.
2.

(of a person) unreliable or eccentric; prone to changing plans or forgetting things

:
He's a bit flaky, so don't rely on him to be on time.
Her ideas can be a bit flaky, but sometimes they're brilliant.