1. excessively quick

- made a hasty exit

Similar word(s): hurried, headlong

2. done with very great haste and without due deliberation

- hasty marriage seldom proveth well

- hasty makeshifts take the place of planning

- rejected what was regarded as an overhasty plan for reconversion

Similar word(s): hurried, overhasty, precipitant, precipitate, precipitous

Sentences with hasty as an adjective:

- Without much thinking about it they made a hasty decision to buy it.