Related Clues:
- Pessimistic type
- Glass-half-empty type
- Distrustful sort
- Doubter
- Suspicious sourpuss
- Negative sort
- Sulking sort
- Skeptical sort
- Sulking one
- Diogenes, for one
- Skeptical person
- Believer in disbelief
- One "whose faulty vision sees things as they are, not as they ought to be": Bierce
- Long-faced one
- Nonbeliever in altruism