Synonyms for Hasty (same or very similar meaning)
WordNet sense 1 (done with very great haste and without due deliberation):
overhasty, precipitant, precipitate, precipitous, precipitateWordNet sense 2 (excessively quick):
headlongWordNet sense 3 (moving rapidly or performed quickly or in great haste):
hurriedFrom the ODE community, based on WordNetadd/edit