obsessiveadj.n.

1897 Amer. Jrnl. Psychol. 8 243 Fear is pathic, obsessive, so concrete that it is no wonder it was long held to be a morbid entity.

1909 A. A. Brill tr. S. Freud Sel. Papers on Hysteria vii. 161 What becomes conscious as an obsession and obsessive affect and substitutes the pathogenic memory in the conscious life, are compromise formations between the repressed and the repressing ideas.

1918 A. E. Davis Hypnotism i. 46 A frequent cause of..obsessive thoughts, is the feeling of shame or regret arising out of bad habits.

1964 Economist 31 Oct. 507/1 The obsessive furor scribendi which..drove him to proliferate lectures, addresses and prefaces.

1999 Sci. Amer. June 71/2 He was obsessive about his diet and bowel habits and kept a daily record..of his body temperature and milk of magnesia consumption.

1959 Econ. Hist. Rev. 11 552 Wicksell was one of the most advanced of obsessives: throughout his adult life delivering pronunciatmientos [sic] on all manner of subjects.

1975 R. Hill April Shroud xii. 154 ‘I've got some rushes here. You want to see them?’ Like all obsessives, he could not doubt the answer.

1994 Sunday Times 6 Mar. viii. 7/3 Now there really is an Obsessive. Less a collector, more a promiscuous art suction machine. She slooshes it up.