1. A weight of twenty grains; the third part of a dram. 2. Hence, a very small quantity; a particle. I will not bate thee a scruple. Shak. 3. Hesitation as to action from the difficulty of determining what is right or expedient; unwillingness, doubt, or hesitation proceeding from motives of conscience. He was made miserable by the conflict between his tastes and his scruples. ...