Open English Wordnet
Adjectives
(s)excessive, extravagant, exuberant, overweeningunrestrained, especially with regard to feelings“extravagant praise”, “exuberant compliments”, “overweening ambition”, “overweening greed”
(s)extravagant, prodigal, profligate, spendthriftrecklessly wasteful“prodigal in their expenditures”