Rationale
noun /ˌræʃ.əˈnɑːl/ — The underlying reason or logic for something
Definition
The fundamental reasons or logical basis for a course of action or belief — the reasoning that explains why something is done or believed, stated explicitly.
Beyond the definition
The reason behind the reason. A rationale is what you offer when someone asks why — not just the immediate justification but the principle underneath it.
Origin & history
From Latin 'rationalis' (reasonable) — from 'ratio' (reason, calculation). Related to 'rational', 'reason', and 'ratio'. The account given of one's reasoning.
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
The rationale for the policy was clear — what was less clear was whether the policy would achieve it.
She presented the rationale before the decision, not after — an unusual choice that made disagreement easier.
A rationale is not the same as a justification: a justification defends what was done; a rationale explains why it was done before it happens.
How to use it
This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”
Choose “Rationale” when the meaning fits your context: The fundamental reasons or logical basis for a course of action or belief — the reasoning that explains why something is done or believed, stated explicitly.
Synonyms
reasoning, basis, logic, justification, grounds
Antonyms
irrationality, whim, caprice
Related words
Questions about this word
What does "Rationale" mean?
Rationale is noun meaning: The underlying reason or logic for something. The fundamental reasons or logical basis for a course of action or belief — the reasoning that explains why something is done or believed, stated explicitly.
Where does the word "Rationale" come from?
From Latin 'rationalis' (reasonable) — from 'ratio' (reason, calculation). Related to 'rational', 'reason', and 'ratio'. The account given of one's reasoning.