impetuous

As adjectives the difference between impetuous and egregious

is that impetuous is making arbitrary decisions, especially in an impulsive and forceful manner while egregious is exceptional, conspicuous, outstanding, most usually in a negative fashion.

As adjectives the difference between foolhardy and impetuous

is that foolhardy is marked by unthinking recklessness with disregard for danger; bold but rash; hotheaded while impetuous is making arbitrary decisions, especially in an impulsive and forceful manner.

As a noun blundering

is the act of making a blunder.

As a verb blundering

is .

As an adjective impetuous is

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

As adjectives the difference between impetuous and headly

is that impetuous is making arbitrary decisions, especially in an impulsive and forceful manner while headly is (archaic) chief; principal; capital; (of sins) deadly.

As an adverb headly is

in a headly manner; impetuously; precipitately; headily.