hasty vs precipitous

hasty and precipitous both are adjectives.

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

As adjectives, hasty and precipitous are synonyms defined as:

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

Other synonyms of hasty include overhasty, precipitant, precipitate.

hasty (adjective)	precipitous (adjective)
excessively quick	done with very great haste and without due deliberation
done with very great haste and without due deliberation	dangerously steep