Sentence:  The pain in itself was neutral ; but unfortunately the rabbit , on <WSD>no</WSD> 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:  quantifier; used with either mass nouns or plural count nouns for indicating a complete or almost complete lack or zero quantity of