To effuse is to shed or to pour out, and an effusion is a spilling or a pouring--especially an outpouring of many emotional words.
So, someone or something effusive is overflowing--usually with emotional words.
eh FYOO siv
Part of speech:
Adjective: "an effusive letter," "he was effusive."
Other forms: effusively, effusiveness (the quality of pouring out many emotional words); effuse, effused, effusing; effusion(s) (any outpourings)
How to use it:
Although the tone of "effusive" can be neutral or positive (as in "the film earned effusive reviews"), it's often a bit negative: effusive people tend to gush, exaggerate, repeat themselves, cause embarrassment, ec.
Talk about effusive people and personalities, effusive praise and compliments, effusive descriptions and explanations, etc.
You can also say that people are effusive in their praise or admiration: "he's effusive in his praise of their work," "she's effusive in her admiration for the team."
examples: This novel's introduction is worse than useless, all effusive kudos and massive spoilers.
"Real loyalty looks like Cordelia, refusing to flatter King Lear at great cost, not like her sisters, praising him effusively to get more land."