n.1 credulity regarding the supernatural.
2 an irrational fear of the unknown or mysterious.
3 misdirected reverence.
4 a practice, opinion, or religion based on these tendencies.
5 a widely held but unjustified idea of the effects or nature of a thing.
Derivatives:
superstitious adj. superstitiously adv. superstitiousness n.
Etymology: ME f. OF superstition or L superstitio (as SUPER-, stare stat- stand)