scrupulous

adjectives

having scruples; arising from a sense of right and wrong; principled
"less scrupulous producers sent bundles that were deceptive in appearance"
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antonym
is similar to
extremely scrupulous and conscientious
"religious in observing the rules of health"
see also
based on or manifesting objectively defined standards of rightness or morality
"principled pragmatism and unprincipled expediency"; "a principled person"
characterized by extreme care and great effort
"conscientious application to the work at hand"; "painstaking research"; "scrupulous attention to details"
is derived from