Synonyms for flatter
verb
To praise unduly
overpraise, adulate, laud, glorify; see compliment 1, praise 1.
To fawn upon
kowtow to, toady to, butter up*; see compliment 1, grovel.
To be becoming to a wearer
become, enhance, suit, beautify, grace, embellish, enrich, adorn, go with; see also become 2.
See flatter in Webster's New World Roget's A-Z Thesaurus II
Learn more about flatter