sceptical
1. [ adjective ] marked by or given to doubt
Synonyms: skeptical questioning doubting
Examples:

"a skeptical attitude" "a skeptical listener"

Related terms: distrustful
2. [ adjective ] (religion) denying or questioning the tenets of especially a religion
Synonyms: skeptical unbelieving disbelieving
Examples:

"a skeptical approach to the nature of miracles"

Related terms: incredulous
Similar spelling:   sceptically
  sceptic
  skeptical
  scepticism
  skeptically
  Scophthalmus
  skeptic
  susceptible
  sceptre
  scepter