Sober

Definitions: (1) practicing a reasonable and moderate use of substance or emotion; temperate; showing self-control; not extreme in any way; (2) regularly displaying calm reason; cool; (3) having a serious, earnest, or thoughtful nature; solemn; (4) quiet; not flashy; (5) honest; not exaggerated <the sober truth>; (6) sane; rational

Balancing Qualities: Enthusiastic, Spontaneous