cluttered

/K L AH1 T ER0 D/
verb
  1. 1

    To fill something with clutter.

  2. 2

    To clot or coagulate, like blood.

  3. 3

    To make a confused noise; to bustle.

  4. 4

    To utter words hurriedly, especially (but not exclusively) as a speech disorder (compare cluttering).

adjective
  1. 1

    Scattered with a disorderly mixture of objects that take up space; littered.

Source: https://en.wiktionary.org/wiki/clutter, https://en.wiktionary.org/wiki/cluttered