hasty, headlong -- (excessively quick; "made a hasty exit"; "a headlong rush to sell")
hasty, overhasty, precipitate, precipitant, precipitous -- (done with very great haste and without due deliberation; "hasty marriage seldom proveth well"- Shakespeare; "hasty makeshifts take the place of planning"- Arthur Geddes; "rejected what was regarded as an overhasty plan for reconversion"; "wondered whether they had been rather precipitate in deposing the king")
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