prattle

/ˈprætəl/
noun
  1. Silly or meaningless talk; chatter.
    • I couldn't concentrate with all the prattle coming from the next room.
    • His speech was just empty prattle with no real substance.
    • The children's prattle filled the car during the long drive.
Antonyms
verb
  1. To talk in a silly or childish way for a long time about unimportant things.
    • He prattled on about his vacation plans without noticing I was bored.
    • The toddler prattled happily about her toys all morning.
    • During the meeting, she prattled about office gossip instead of focusing on work.