Word Study
hastiness
CIDE DICTIONARY
hastiness, n.
The quality or state of being hasty; haste; precipitation; rashness; quickness of temper. [1913 Webster]
THESAURUS
hastiness
abandon, abruptness, alacrity, careless abandon, carelessness, casualness, cursoriness, desperateness, devil-may-careness, disregardfulness, easiness, expeditiousness, fecklessness, feverishness, forgetfulness, forwardness, furiousness, haste, heedlessness, hotheadedness, hurriedness, impatience, impetuosity, impetuousness, improvidence, impulse, impulsiveness, inconsiderateness, inconsideration, indifference, insouciance, lack of foresight, lax stewardship, laziness, negligence, oblivion, offhandedness, overeagerness, overenthusiasm, overhastiness, overzealousness, perfunctoriness, poor husbandry, precipitance, precipitancy, precipitateness, precipitation, precipitousness, precociousness, precocity, prematureness, prematurity, promptness, quickness, rashness, recklessness, regardlessness, rush, shiftlessness, speed, sprezzatura, suddenness, swiftness, tactlessness, thoughtlessness, thriftlessness, unheedfulness, unmindfulness, unpreparedness, unreadiness, unsolicitousness, unsolicitude, unthinkingness, untimeliness, wantonness, wildnessFor further exploring for "hastiness" in Webster Dictionary Online