Meanings
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1
noun
a person who talks at length in a foolish, trivial, or childlike way
The host dismissed him as a prattler who never reached the point.
Thesaurus
Etymology
Formed from prattle + the agent suffix -er: literally, one who prattles. The noun can suggest childish speech, but it is also used dismissively for an adult who talks foolishly or tediously about trivial matters.