One who flatters.

plural of flatterer

comparative form of flat: more flat

To compliment someone, often (but not necessarily) insincerely and sometimes to win favour. / To enhance someone's vanity by praising them. / To portray someone to advantage.

A type of set tool used by blacksmiths. / A flat-faced fulling hammer. / A drawplate with a narrow, rectangular orifice, for drawing flat strips such as watch springs.

(Britain, New Zealand, slang) Someone who lives in a rented flat.

Attractive or good-looking; that makes one look good. / Gratifying to one's self-esteem; complimentary. / (of an image etc.) That which represents too favorably.

present participle of flatter

The action of the verb to flatter. / Instances of flattery.

In a positive mood because of a comment or action which causes one to feel proud of oneself.