As nouns the difference between decisionmaking and risktaker
is that decisionmaking is alternative form of decision making while risktaker is a person who takes risk, especially to reap the benefits if the feared event does not happen.
risktaker
English
Alternative forms
* risk-taker
* risk taker
Noun
(
en noun)
A person who takes risk, especially to reap the benefits if the feared event does not happen.