English edit

Etymology edit

mutter +‎ -ation

Noun edit

mutteration (countable and uncountable, plural mutterations)

  1. (nonce word) An act of muttering or complaining.
    • 1989, Elizabeth Yates, Carolina's Courage, page 41:
      Inside, under the canvas top, there was a chattering mutteration, as if all the items so carefully stowed away were talking together.