This is the 14851st most frequent German word.
rational
Logical; based on reason or clear thought.
The word 'rational' describes the action of logically considering all possibilities.
Es ist rational, vor einer großen Entscheidung alle Optionen abzuwägen.
It is rational to weigh all options before making a major decision.
Here, 'rational' refers to the reasoning that is based on logic and evidence.
Die Wissenschaftler waren beeindruckt von ihrer rationalen Argumentation.
The scientists were impressed by her rational argumentation.
In this sentence, 'rational' denotes being in control of one's thoughts and behaving logically.