English Reference
noun · adjective

skeptic

n. · adj.
US /ˈskɛptɪk/ skep·tic UK spelling Sceptic, skeptic's, skeptic's

  1. 01 B2 Upper Intermediate American English

    n.someone who does not easily believe what they are told and wants proof before they accept something as true.

    n.a person who maintains a questioning attitude toward claims or beliefs that are generally accepted by others.

    Simple

    I was a skeptic at first, but the results of the experiment convinced me.

    In context

    Even the most hardened skeptics were forced to admit that the new economic policy had produced measurable improvements in the local market.

    Usage

    Often followed by the preposition 'of'.

    Pitfall
    He is a skeptic about the new plan. He is a skeptic of the new plan.

    While 'about' is sometimes used, 'of' is the more standard preposition following the noun 'skeptic'.

    doubtercynicquestioner
  2. 02 C1 Advanced American EnglishFormal Religion

    n.someone who doubts the truth of religious beliefs or organized religion.

    n.a person who questions or doubts the validity of religious doctrines or the existence of a deity.

    Simple

    The book explores the history of religious skeptics in the nineteenth century.

    In context

    The philosopher was known as a lifelong skeptic who challenged the church's influence on public education and scientific research.

    agnosticunbeliever
  3. 03 B2 Upper Intermediate American English

    adj.having or showing doubt about something.

    adj.expressing or characterized by a questioning or doubting attitude.

    Simple

    She gave him a skeptic look when he said he would be home by midnight.

    In context

    The committee remained skeptic regarding the feasibility of the project, despite the optimistic projections provided by the consultants.

    Teacher's tip

    In modern English, the adjective form 'skeptical' is much more common than using 'skeptic' as an adjective.

Green parties lost out in the 2024 European elections, and the business-friendly centre-right now holds sway in a European Parliament where climate sceptics on the far-right also have a bigger say.

The Local· 4 Sept 2026

Borrowed from Middle French sceptique (but with a pronunciation closer to that of the Greek etymon), or possibly directly from Late Latin scepticus (originally attested only in the plural Scepticī (“the sect of Skeptics”)), from Ancient Greek σκεπτικός (skeptikós, “thoughtful, inquiring”), from σκέπτομαι (sképtomai, “I consider”), compare to σκοπέω (skopéō, “I view, examine”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Ancient Greek σκεπτικός
Level B2 · Upper Intermediate
Frequency Occasional
Updated