verb (used with object), un·stepped, un·step·ping.
Examples from the Web for unstep
At length the branches extended so far across the passage that we were compelled to unstep the mast in order to pass under them.The Wanderers|W.H.G. Kingston
They had only to unstep its mast and lie flat in the cup of its soggy platform and they could not be spied half a mile away.Where the Pavement Ends|John Russell