ruminator

noun

1. One who ruminates; one who meditates or reflects.

   “An all-round terrific lady: sweet, compassionate, busty, pert-nosed, prone to floods of sudden tears, a lover of mini-skirts and tall leather boots and snug sweaters, which you somehow wore with total innocence, a worrier, a sweet ruminator by windows. a girl possessed of incredibly long. elegant eyelashes. and of course more flawlessly managed hair than a salonful of average girls could ever grow.”

   “The narrator is a reader and ruminator, a provocateur.”

   “They’re also more likely to become unnerved by stressful events: for instance, Nolen-Hoeksema found that residents of San Francisco who self-identified as ruminators showed significantly more depressive symptoms after the 1989 Loma Prieta earthquake.”