restlessness, distrust, queasiness, uneasiness, squeamishness, scruple, compunction, dizziness, mistrust, suspicion, illness, reservation, apprehension, misgiving, certain.
disbelief (part of speech: noun)
regret (part of speech: noun)
doubt (part of speech: verb)
He felt a qualm
of pity for Lewison- but, after all, the man was a wolf, selfish, accumulating money to no purpose, useless to the world.
- "Black Jack", Max Brand.
She had left me without a qualm.
- "The Morals of Marcus Ordeyne", William J. Locke.
There are insects upon which one's foot falls, reptiles which one removes from the earth without a vestige of a qualm,
with a certain sense of relief.
- "The Betrayal", E. Phillips Oppenheim.