Scrupulous means very careful to do things properly and correctly. If you’re scrupulous, you probably pay your friends back right away when they loan you money and never try to return clothing you’ve already worn.

A scrupulous person is full of scruples, which are concerns about doing things that are morally right. Such a person is hesitant or doubtful, and might have trouble deciding what is morally right or wrong. The adjective scrupulous is from Latin scrūpulōsus, from scrūpulus, “scruple.” A near synonym is punctilious.

Definitions of scrupulous
  1. adjective

    characterized by extreme care and great effort

    scrupulous attention to details”
    conscientious, painstaking


    exercising caution or showing care or attention
  2. adjective

    having scruples; arising from a sense of right and wrong; principled

    scrupulous producers sent bundles that were deceptive in appearance”


    based on or manifesting objectively defined standards of rightness or morality

    extremely scrupulous and conscientious
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    without scruples or principles
    amoral, unprincipled

    lacking principles or moral scruples
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