Un-scrupulousness refers to the lack of morals or ethics. Its antonyms would therefore reflect the presence of principles or values. Some antonyms for un-scrupulousness include integrity, ethical, honest, decent, principled, trustworthy, law-abiding, upright, and honorable. These words imply that the person or situation in question is grounded in a strong moral framework and does not engage in unethical or immoral behavior. Having scruples means being conscious of what is right and wrong and acting accordingly. Thus, those who exhibit antonyms of un-scrupulousness demonstrate integrity and a commitment to do the right thing, even when it is difficult.