impetuous vs brainish

impetuous and brainish both are adjectives.

Word	Noun	Adjective	Verb	Adverb
impetuous	No	Yes	No	No
brainish	No	Yes	No	No

As adjectives, impetuous and brainish are synonyms defined as:

impetuous and brainish: characterized by undue haste and lack of thought or deliberation

Other synonyms of impetuous include hotheaded, impulsive, madcap, tearaway.

impetuous (adjective)	brainish (adjective)
marked by violent force	characterized by undue haste and lack of thought or deliberation
characterized by undue haste and lack of thought or deliberation