scrupulous -
having scruples; arising from a sense of right and wrong; principled; "less scrupulous producers sent bundles that were deceptive in appearance"
unscrupulous without scruples or principles; "unscrupulous politicos who would be happy to sell...their country in order to gain power"
principled based on or manifesting objectively defined standards of rightness or morality; "principled pragmatism and unprincipled expediency"; "a principled person"
Scrupulous -
characterized by extreme care and great effort; "conscientious application to the work at hand"; "painstaking research"; "scrupulous attention to details"
careful exercising caution or showing care or attention; "they were careful when crossing the busy street"; "be careful to keep her shoes clean"; "did very careful research"; "careful art restorers"; "careful of the rights of others"; "careful about one's behavior"