adjective

(of speech or writing) effusive or exaggeratedly enthusiastic.

gushing praise

effusive,over-effusive,enthusiastic,over-enthusiastic,unrestrained,unreserved,extravagant,fulsome,lavish,gushy,rhapsodic,lyrical,exuberant,ebullient,expansive,over the top,OTT,hyped up,laid on with a trowel