Qualms
Qualms refers to uneasy feelings or doubts about a particular action, decision, or belief. The term can describe a momentary sense of physical queasiness as well as a more persistent moral or ethical reservation. In ordinary usage, people say they have qualms about lying, breaking a promise, or taking a risky step, and they may act with or without qualms depending on the strength of their concerns.
Etymology and history: Qualm appears in English in the early modern period with senses related to nausea
Usage: Common phrases include “to have qualms about” and “to act without qualms.” Qualms can be described
Context and culture: In literature and journalism, qualms are often invoked to show a character’s conscience
See also: doubt, scruple, misgiving, conscience, hesitation.