- scrupulous - having scruples; arising from a sense of right and wrong; principled; "less scrupulous producers sent bundles that were deceptive in appearance"
Antonym: unscrupulous
- conscientious, painstaking, scrupulous - characterized by extreme care and great effort; "conscientious application to the work at hand"; "painstaking research"; "scrupulous attention to details"
Antonym: careless (indirect, via careful)