Example : Made a hasty exit.
A headlong rush to sell.

Synonyms : headlong

Example : Hasty marriage seldom proveth well.
Hasty makeshifts take the place of planning.
Rejected what was regarded as an overhasty plan for reconversion.
Wondered whether they had been rather precipitate in deposing the king.

Synonyms : overhasty, precipitant, precipitate, precipitous