qualm

synonyms qualm , scruple , compunction , demur mean a misgiving about what one is doing or going to do. qualm implies an uneasy fear that one is not following one's conscience or better judgment <no qualms about plagiarizing>. scruple implies doubt of the rightness of an act on grounds of principle <no scruples against buying stolen goods>. compunction implies a spontaneous feeling of responsibility or compassion for a potential victim <had compunctions about lying>. demur implies hesitation caused by objection to an outside suggestion or influence <accepted her decision without demur>.