Misgiving
Part of speech: noun
Definition: doubt, apprehension, a feeling of dread
Scruple
Part of speech: verb
Definition: To be reluctant or to hesitate, as regards an action, on account of considerations of conscience or expedience.To regard with suspicion; to hesitate at; to question.To doubt; to question; to hesitate to believe; to question the truth of (a fact, etc.).To excite scruples in; to cause to scruple.
Part of speech: noun
Definition: A weight of twenty grains; the third part of a dram.Hence, a very small quantity; a particle.Hesitation as to action from the difficulty of determining what is right or expedient; unwillingness, doubt, or hesitation proceeding from motives of conscience; to consider if something is ethical.A doubt or uncertainty concerning a matter of fact; intellectual perplexity.