Sentence:  “Tut!” said old Bittlesham. “Tut is right”, I agreed. Then the rumminess of the thing struck me. “But if you haven't dropped a parcel over the race,” I said, “why are you looking so <WSD>rattled</WSD>?” 
Meaning of the word marked with <WSD> tags:  To scare, startle, unsettle, or unnerve.