unflappable
un-FLAP-uh-buladjMeaning staying calm even in a sudden crisis
Memory hook UN-FLAP-able: never flaps like a chicken. The chickens flap and squawk in a panic, but Nana Lou calmly scoops them up one by one. She is unflappable.
The unflappable pilot landed the plane smoothly in the storm.
In context When the oven caught fire during the big dinner, the unflappable chef simply put it out, opened a window and went on cooking as if nothing had happened.
Similar cool, collected, unruffled, unexcitable
Opposite excitable, jittery, panicky