Synonyms and related words :
down-to-earth, earthy, hard, hard-boiled, hardheaded, matter-of-fact, positivistic, practical, practical-minded, pragmatic, rational, realist, realistic, reasonable, sane, scientific, scientistic, secular, sensible, sober, sober-minded, sound, sound-thinking, straight-thinking, unideal, unidealistic, unromantic, worldly