hastiness vs oversteer

hastiness and oversteer both are nouns.

Word	Noun	Adjective	Verb	Adverb
hastiness	Yes	No	No	No
oversteer	Yes	No	No	No

As nouns, oversteer is a hyponym of hastiness; that is, oversteer is a word with a more specific, narrower meaning than hastiness:

hastiness: overly eager speed (and possible carelessness)
oversteer: when a car turns (steers) by more than (over) the amount commanded by the driver.

Other hyponyms of hastiness include abruptness, precipitance, precipitancy, precipitateness, precipitousness, suddenness.

hastiness (noun)	oversteer (noun)
hasty impulsiveness	when a car turns (steers) by more than (over) the amount commanded by the driver.
overly eager speed (and possible carelessness)