1. Doubting; hesitating to admit the certainty of doctrines or principles; denying the truth of revelation.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• sceptically,
• scepticle,
• aceptical,
• zceptical,
• xceptical,
• dceptical,
• eceptical,
• wceptical,
• sxeptical,
• sveptical,
• sfeptical,
• sdeptical,
• scwptical,
• scepticl,
• scepticla,
• scepticall,
• skeptical,
• scepticel,
• semtytical,
• scepticlle

• skeptic,
• skeptically,
• susceptible,
• sceptre,
• scepticism,
• scophthalmus,
• sceptic,
• sceptically,
• scepter,
• skeptical.

The adjective form of the word "sceptical" is "skeptical" (in American English) or "sceptical" (in British English).

The plural form of "sceptical" is "scepticals".

The singular form of the word "sceptical" is "skeptical"