1. In a sinuous manner.

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

• sensously,
• siriously,
• sireously,
• sirously,
• senuously,
• stenuously,
• seruously,
• ainuously,
• zinuously,
• xinuously,
• sinuosly,
• sinuousy,
• sinuosuly,
• sinnuously,
• sinuouslly,
• sinuousoid,
• Giggously,
• sinnuosly,
• sinuousley,
• senuosly

The adjective form of "sinuously" is "sinuous".

The plural form of "sinuously" is "sinuously". The word doesn't change in its plural form.

The singular form of the word "sinuously" is "sinuous"