# rationally

/ˈɹæʃənəɫi/ (US) · /ɹˈæʃənəli/ (UK) · CEFR B2 · Adverb

Source: https://englishreference.com/word/rationally
Updated: 2026-05-09

## Definition

in a way that is based on facts and clear thinking rather than on feelings. You use this when someone makes a choice using logic.

For teachers: in a manner based on or in accordance with reason or logic. Often used to describe decision-making processes that exclude emotional bias.

## Examples

- We need to discuss this problem rationally.
- Despite the stressful situation, she managed to act rationally and called for help immediately.
- Economists often assume that consumers will behave rationally by choosing the product that offers the highest utility for the lowest possible price.

## Usage notes

- Typically follows the verb it modifies or appears at the end of the clause.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.