dishonourable

/D IH0 S AA1 N ER0 AH0 B AH0 L/
adjective
  1. 1

    Without honor, or causing dishonor.

  2. 2

    Lacking respect for ethical principles.

Source: https://en.wiktionary.org/wiki/dishonorable, https://en.wiktionary.org/wiki/dishonourable