1. Scepticism, or universal doubt.

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

• oyrrhonism,
• lyrrhonism,
• -yrrhonism,
• 0yrrhonism,
• ptrrhonism,
• pgrrhonism,
• phrrhonism,
• purrhonism,
• p7rrhonism,
• p6rrhonism,
• pyerhonism,
• pyrrhonizm,
• pyrrhonidsm,
• pyrrhonisem,
• pyrhonism,
• Pyrrhonisme,
• Pirhonism,
• Pyrrhoanism,
• Pyrrhonisim,
• Pyrrhonismus

The adjective form of "Pyrrhonism" is "Pyrrhonian".

The plural form of the word "Pyrrhonism" is "Pyrrhonisms".

The singular form of the word "Pyrrhonism" is "Pyrrhonism".