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...
   • The narrator is a reader and ruminator, a provocateur. - 2009 January 25, Maria Russo, “Unhappy Together”, in The New York Times:
   • 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...