skepticalness

• a word derived from skeptic.
  skeptic

  noun

  a person who questions the validity or authenticity of something purporting to be factual.
• a word derived from skeptical.
  skeptical

  adjective

  inclined to skepticism; having an attitude of doubt.

Related Words

• agnostic
• cynic
• dissenter
• doubter
• pessimist
• questioner