Impetuous

[Rihanna]

Rushing with force and violence; moving with impetus;
furious; forcible; violent; as, an impetuous wind; an impetuous
torrent.

[Jason Yan]

People who act on a sudden [idea] without considering the results of their actions.
This adjective has a [negative] [connotation].

[Cami]

[fast] or [random action]

[Kai]

Acting or done quickly and without thought or care.

[Vania]

[Mike] Tysons [Style].

[Cami]

likely to do something suddenly, without considering the results of your actions: