unprincipled
1. [ adjective ] lacking principles or moral scruples
Examples:

"freedom from coarse unprincipled calumny"- A.E.Stevenson

Related terms: principled immoral unscrupulous
2. [ adjective ] having little or no integrity
Related terms: dishonorable
Similar spelling:   unappreciated
  unprintable
  unbranded
  unappreciative