rational

adjective1 of 2

sensible; based on facts

• “Nobody with a rational mind would attempt such a thing.”Tatoeba
• “Although the arguments were rational, he was not convinced.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

The breastplate worn by Israelite high priests.