What is the meaning of Scruple?

Hesitation to act from the difficulty of determining what is right or expedient; doubt, hesitation or unwillingness due to motives of conscience.

A weight of 288 of a pound, that is, twenty grains or one third of a dram, about 1.3 grams (symbol: ).

A Hebrew unit of time equal to 1080 hour.

A very small quantity; a particle.

A doubt or uncertainty concerning a matter of fact; intellectual perplexity.

To hesitate or be reluctant to act due to considerations of conscience or expedience.

To excite scruples in; to cause to scruple.

To regard with suspicion; to question.

To question the truth of (a fact, etc.); to doubt; to hesitate to believe, to question.

Source: wiktionary.org