rationale - Master This Word
Master this word with our 5-step learning method – Learn English in English
rationale Word Meanings
- the reasoning or logical basis for something
- a justification or explanation
- the underlying principle or reason
rationale Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
rationale Phonetic & Pronunciation
UK
/ˌræʃ.əˈnɑːl/
US
/ˌræʃ.əˈnæl/
rationale Word Etymology
rationale = ratio (reason) + -ale (related to); Origin: Latin → Late Middle English. Memory image: Imagine a judge weighing evidence, using reason to make a decision, signifying the connection between rational thinking and decisions.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
A rationale is the reasoning or logical basis behind a claim, action, or decision. It is the justification offered to explain why something is done or believed, and it appears in formal or written contexts such as reports, proposals, or policy documents. A rationale also captures the underlying principle that guides choices, even when the surface justification might seem subjective. In logic, it refers to the chain of premises that leads to a conclusion. Learners should distinguish a rationale from motive: motive explains why someone acts, while a rationale explains why that motive is reasonable or warranted.
Usage Reminders
- Use "the rationale for" to introduce a justification.
- Distinguish rationale from motive and reason.
- Support the rationale with evidence or premises.
- In formal writing, keep the rationale concise and well-structured.
- Learn common collocations like "sound rationale" and "weak rationale".
Common Misconceptions
- Rationale is just a personal excuse, not a logical justification.
- A rationale must always be long or overly detailed.
- Rationale and motive are the same thing.
- You can use 'rationale' interchangeably with 'reasoning' in every context.
- Rationale only appears in formal or academic writing.
Thinking Differences
In English, rationale is often a formal, explicit justification tied to a clear chain of logic. Learners may overstate or understate the justification, or confuse rationale with motive in casual speech.
Learning Tips
- Distinguish rationale from motive and reason.
- Use the phrase 'the rationale for' before a justification.
- Link premises to conclusions with clear examples.
- Keep explanations concise in formal writing.
- Practice collocations like 'sound rationale' and 'weak rationale'.
- Review examples in reports or proposals to see natural usage.
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of the word 'rationale'?
A.Explanation
B.Reasoning
C.Excuse
D.Justification
Step 2: Usage
In which sentence is 'rationale' used correctly?
A.She couldn't understand the rationale behind his decision.
B.He provided a rationale for his absence.
C.The rationale of the experiment was clear.
D.Their rationale for leaving early was unclear.
Step 3: Similar Words
Which word is a synonym of 'rationale'?
A.Deny
B.Refute
C.Basis
D.Rebut
Step 4: Opposite Words
In what real-world situation would you use the word 'rationale'?
A.Shopping for groceries at the store
B.Arguing with a friend about a movie plot
C.Discussing a project proposal at work
D.Watching a comedy show on TV
Step 5: Mastery
Can you provide a real-life context where 'rationale' would be used?
A.Solving a math problem in class
B.Responding to a text message from a friend
C.Explaining to a teacher why you missed a class
D.Eating dinner with your family
Want to practice more words?
Download LexiTalk app for personalized learning experience
Download App