Impulsive
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invariable, sound, nonarbitrary, constant, down-to-earth, wise, logical, unrelenting, premeditative, changeless, sobersided, sober, induced, unalterable, settled, inflexible, undynamic, equable, established, stable, adynamic, hard-and-fast, pragmatic, cautious, planned, matter of fact, steady, hard-boiled, thoughtful, immutable, sensible, deliberate, calm, resistible, unchanging, rational, levelheaded, hardheaded, commonsensical, manageable, steadfast, voluntary, unvarying, unyielding, tough-minded, unforced, Considering, fixed, sane, heedful, earthy, fast, unarbitrary, reasonable, Grounded, unbending, no-nonsense, controllable, practical.