Sentence:  The awfulest thing was the silence; there wasn't a sound but the screaking of the saddles, the measured tramplings, and the sneezing of the horses, afflicted by the smothering dust-clouds which they kicked up. I wanted to sneeze myself, but it seemed to me that I would rather go <WSD>unsneezed</WSD>, or suffer even a bitterer torture, if there is one, than attract attention to myself. 
Meaning of the word marked with <WSD> tags:  Not having sneezed.