An example of someone scrupulous is an accountant who never leaves the books unbalanced.
A good citizen who returns money found to the person who dropped it is an example of someone scrupulous.
He is scrupulous in his finances.
Origin of scrupulous
- Middle English from Old French scrupuleux from Latin scrūpulōsus from scrūpulus scruple scruple
From American Heritage Dictionary of the English Language, 5th Edition