chatterest

Verb

chatter (third-person singular simple present chatters, present participle chattering, simple past and past participle chattered)

1. (intransitive) To talk idly.
   • They knitted and chattered the whole time.

   Synonyms:

   chat, natter

2. (intransitive, usually, machinery) To make a noise by rapid collisions.
   • He was so cold that his teeth were chattering.

   Synonyms:

   clatter, gnash, grind, pink

3. To utter sounds which somewhat resemble language, but are inarticulate and indistinct.
   • The jay makes answer, as the magpie chatters with delight.1815 [1802], William Wordsworth, Resolution and Independence

See all 14 meanings of chatter