What is Scrupleless?

Scrupleless definition and meaning on Dictionary terms:

a moral or ethical consideration or standard that acts as a restraining force or inhibits certain actions.
a very small portion or amount.
a unit of weight equal to 20 grains (1.295 grams) or 1/3 of a dram, apothecaries’ weight.
an ancient Roman unit of weight equivalent to 1/24 of an ounce or 1/288 of an as or pound.Compare as2(def 2).