1. In a rational manner; in consistency with reason.

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

• rashionally,
• nationanly,
• rationaly,
• reactionally,
• irationally,
• nationallly,
• irationaly,
• motionally,
• trationally,
• rationallity,
• nationaly,
• rationalle,
• nationall,
• rationalie,
• ratially,
• rationallly,
• rattionally,
• eotionally,
• tradtionally,
• cautionally

• rational,
• rationalism,
• rationalise,
• rationalize,
• rationalist,
• rationale,
• rationalness,
• rationality,
• rationalistic.

The adjective form of the word "rationally" is "rational".

The plural form of the word "rationally" is "rationally". The word remains the same in its plural form.

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