Definition of scruple

• n. - A weight of twenty grains; the third part of a dram.
• n. - Hence, a very small quantity; a particle.
• n. - Hesitation as to action from the difficulty of determining what is right or expedient; unwillingness, doubt, or hesitation proceeding from motives of conscience.
• v. i. - To be reluctant or to hesitate, as regards an action, on account of considerations of conscience or expedience.
• v. t. - To regard with suspicion; to hesitate at; to question.
• v. t. - To excite scruples in; to cause to scruple.