precipitant vs hasty

precipitant is a noun but hasty is not a noun.

Word	Noun	Adjective	Verb	Adverb
precipitant	Yes	Yes	No	No
hasty	No	Yes	No	No

As adjectives, precipitant and hasty are synonyms defined as:

precipitant and hasty: done with very great haste and without due deliberation

Other synonyms of precipitant include overhasty, precipitate, precipitous.

precipitant (noun)	hasty (noun)
an agent that causes a precipitate to form

precipitant (adjective)	hasty (adjective)
done with very great haste and without due deliberation	excessively quick
	done with very great haste and without due deliberation