Racionálny

Racionálny is a Czech adjective meaning rational, reasonable, or logical. It is derived from the Latin word "rationalis," which has the same meaning.

In everyday language, "racionálny" is used to describe a person's thinking, actions, or decisions that are based on reason and logic rather than emotion or impulse. For example, a "racionálny prístup" (rational approach) would involve careful consideration of facts and potential outcomes before making a choice. Similarly, a "racionálny človek" (rational person) is someone who tends to make sensible judgments.

The term also appears in more technical contexts. In mathematics, a "racionálne číslo" (rational number) is any number that can be expressed as a fraction p/q, where p and q are integers and q is not zero. This contrasts with irrational numbers, which cannot be expressed in this form.

In philosophy, "racionálny" is a key concept related to the faculty of reason. Philosophers explore the nature of rational thought, its limits, and its role in acquiring knowledge and making ethical judgments.

The opposite of "racionálny" is "iracionálny," meaning irrational or unreasonable. This could describe thoughts, behaviors, or phenomena that lack a logical basis.