ruminative

given to or marked by long, quiet thinking a ruminative man, who contributed to discussions only after he had completely thought things through Synonyms broody, cogitative, meditative, melancholy, musing, pensive, reflective, ruminant, contemplative, thoughtfulRelated Words introspective, retrospective, self-reflective; earnest, grave, sedate, serious, serious-minded, severe, sober, solemn, somber (or sombre), weighty; philosophical (also philosophic); analytic (or analytical), logical, rational; deliberate, purposeful; absentminded, abstracted, preoccupiedNear Antonyms featherbrained, flighty, flippant, frivolous, goofy, harebrained, light-headed, scatterbrained; brainless, mindless, silly, thoughtless, unthinkingAntonyms unreflective