Open English Wordnet
Adjectives
(a)scrupuloushaving scruples; arising from a sense of right and wrong; principled“less scrupulous producers sent bundles that were deceptive in appearance”
(s)conscientious, painstaking, scrupulouscharacterized by extreme care and great effort“conscientious application to the work at hand”, “painstaking research”, “scrupulous attention to details”