aplomb, assurance, balance, common sense, confidence, cool head, coolheadedness, coolness, due sense of, equability, equanimity, equilibrium, good sense, horse sense, levelheadedness, plain sense, poise, possession, practical mind, practical wisdom, practicality, presence of mind, rationality, reason, reasonableness, restraint, saneness, sanity, self-assurance, self-command, self-confidence, self-control, self-possession, self-restraint, sense, sensibleness, sober-mindedness, soberness, sobriety, soundness, well-regulated mind