Sentence:  The pain in itself was neutral ; but unfortunately the <WSD>rabbit</WSD> , on no grounds at all , took up toward this neutral object an attitude of disapproval and that made it for the first time , and in the only intelligible sense , bad . 
Meaning of the word marked with <WSD> tags:  any of various burrowing animals of the family Leporidae having long ears and short tails; some domesticated and raised for pets or food