I always choose the best answer: How do I say ''They were like headless chickens.'' in a FORMAL way?

Answer 1

They were manic or frantic or or frenetic or frenetically disorganised (or organised, depending on context).

Answer 2

They conducted themselves as though they possessed no leader at all.
They appeared, to all who observed them, to have no direction and no clarity of thought.

Answer 3

it sounds okay the way youre saying it now

Answer 4

They are acting mindlessly.