rationally.

1. In a way based on reasons and considered judgment rather than impulse or unsupported assumptions.

2. Through a relationship or calculation expressible using ratios of whole numbers.

Use it for

Words that belong together

• act rationally
• assess rationally
• rationally justified

On the page

The committee assessed the risk rationally without pretending that uncertainty had disappeared.

Usage notes

Primary category: academic / formal. Forms: Invariable adverb. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: analysis, interpretation, qualification. Commonness: moderately common.