1 adverbs to describe how to unparalleled

My voice seemed to the astounded Americans inside to come out of the stovea phenomenon which was utterly unparalleled in all their previous experience; but they reasoned very correctly that any stove which could ask in good English for the door in the middle of the night had an indubitable right to be answered; and they replied in a hesitating and half-frightened tone that the door was "on the south-east corner."

1 adverbs to describe how to  unparalleled  - Adverbs for  unparalleled