Sentence:  Furuseth was right; I was <WSD>abnormal</WSD>, an "emotionless monster," a strange bookish creature, capable of pleasuring in sensations only of the mind. 
Meaning of the word marked with <WSD> tags:  Of or pertaining to that which is irregular, in particular, behaviour that deviates from norms of social propriety or accepted standards of mental health. (First attested around the early 20th century.)<ref name=SOED/>