He knew Mason to be somewhat Seclusive in his life, but he also knew the high place he held in the eyes of several women.
"Rose of Dutcher's Coolly"
Hamlin Garland
Children with super-average intelligence are frequently Seclusive and morons often seem to be temperamentally normal.
"Eugenics as a Factor in the Prevention of Mental Disease"
Horatio Milo Pollock
During his sojourn in the Government Hospital for the Insane, he was always very suspicious and Seclusive, keeping to his room practically all the time and aloof from the other patients in the ward.
"Studies in Forensic Psychiatry"
Bernard Glueck