overweening vs excessive

overweening and excessive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
overweening	No	Yes	No	No
excessive	No	Yes	No	No

As adjectives, overweening and excessive are synonyms defined as:

overweening and excessive: unrestrained, especially with regard to feelings

Other synonyms of overweening include extravagant, exuberant.

overweening (adjective)	excessive (adjective)
presumptuously arrogant	beyond normal limits
unrestrained, especially with regard to feelings	unrestrained, especially with regard to feelings