Thank you e2efour. Impetuous means impulsive.In this case I would choose impetuous.
Thank you sdgraham.
Not in any literal sense. It's used metaphorically to show a rapid change in a social situation.But in WR dictionaries. Volatile does mean explosive. Why did you say it's misused?
Your example fails.He's volatile/impetuous and want to make a lot of money overnight.