down-to-earth

reasonable, practical

Synonyms: common, commonsense, easy, hard, hardboiled, hardheaded, matter-of-fact, mundane, no-nonsense, plainspoken, pragmatic, rational, realistic, sane, sensible, sober, unfantastic, unidealistic, unsentimental

Antonyms: excitable, excited, impractical, unreasonable, unsensible