shittiest

/SH IH1 T IY0 AH0 S T/
adjective
  1. 1

    Very bad; unpleasant; miserable; insignificant.

    โ€œI'm feeling shitty today; I don't want to go out.โ€

  2. 2

    Under the influence of illicit drugs or alcohol; drunk; high.

  3. 3

    Annoyed.

    โ€œDon't get shitty at me!โ€

  4. 4

    Covered in crap (faeces/feces); feculent.

  5. 5

    Of low quality or standard; inferior; not up to par, or failing one's expectations

Source: https://en.wiktionary.org/wiki/shittiest, https://en.wiktionary.org/wiki/shitty