Unthrifty vs Impetuous - What's the difference?

Unthrifty is a related term of impetuous.

is that unthrifty is not thrifty while impetuous is making arbitrary decisions, especially in an impulsive and forceful manner.

(er)

Not thrifty.

(en adjective)

Making arbitrary decisions, especially in an impulsive and forceful manner.

* 1880 , John Weeks Moore, Complete Encyclopaedia of Music , "":

But it was natural, that the impetuous , restless young artist should incline more to excess of strength than of delicacy in his playing.

Characterized by sudden and violent force.

* 1794 , :

He stands, and views in the faint rays
Far, far below, the torrent's rising surge,
And listens to the wild impetuous roar

* impulsive * hasty * rash * hotheaded