Believable vs. Credible – Which is Correct?

While often used interchangeably, believable and credible describe distinct qualities related to truth and acceptance. Believable refers to something that appears plausible or conceivable, often based on intuition or common understanding. Credible, on the other hand, describes something or someone deserving of belief due to trustworthiness, reliability, or objective evidence. A story might be believable, but its source must be credible.

Believable or Credible – Which is Correct?

Both “believable” and “credible” are correct English adjectives, but they are not synonyms. The core difference lies in their focus: “believable” centers on the receiver’s perception and the inherent plausibility of information, while “credible” focuses on the source and its inherent trustworthiness or the objective evidence supporting the information. Something can be believable without being credible, and vice versa, though ideally, we seek information that is both.

For further clarity on similar linguistic distinctions, explore the differences between Credible vs. Creditable.

The Best Trick to Remember the Difference

To remember the difference, think of the root words. Believable relates to “belief,” which is often subjective and based on what seems true to an individual. If you can easily imagine it happening, it’s believable. Credible relates to “credit,” as in giving credit to a reliable source or having confidence in the evidence. If a person or source has a good reputation or strong evidence, they are credible. Think: “Believable = Evident to the senses/mind” vs. “Credible = trustwed.”

Word	Part of Speech	Meaning	Example
Believable	Adjective	Appearing to be true or real; plausible.	The plot of the movie was so believable, I felt like it could happen in real life.
Credible	Adjective	Able to be believed; convincing; trustworthy.	The journalist presented a credible report, backed by multiple verified sources.

How to Use Believable

“Believable” is an adjective used to describe something that seems true, possible, or plausible to the mind. It often relates to the internal consistency of a story, argument, or explanation, or how well it aligns with general knowledge or experience. The tone can range from neutral to impressed when something is particularly well-constructed, but it doesn’t necessarily imply factual accuracy or objective truth, only that it could be true.

Example 1: Despite its fantastical elements, the character’s motivation was remarkably believable.

Example 2: The alibi sounded perfectly believable, but the police still needed to verify it.

Example 3: Her excuse for being late was so elaborate that it became less believable.

What are the different forms of Believable?

As an adjective, “believable” can form comparative and superlative degrees:

• Positive: believable
• Comparative: more believable
• Superlative: most believable

Etymology of the word Believable

The word “believable” emerged in the late 14th century, deriving from the Middle English verb “believe” and the suffix “-able,” which means “capable of” or “worthy of.” Thus, “believable” literally means “capable of being believed.” The root “believe” comes from Old English geliefan, related to lief meaning “dear, beloved,” suggesting a connection to trust and acceptance.

How to Use Credible

“Credible” is an adjective that describes someone or something that is trustworthy, reliable, and deserving of confidence and belief, typically due to evidence, expertise, or a good reputation. When something is credible, it implies a higher standard of objective truthfulness or reliability compared to merely being believable. It’s often used in formal contexts like journalism, law, and academic research.

Example 1: The witness’s testimony was highly credible, given her professional background and lack of bias.

Example 2: Scientists require credible data from peer-reviewed studies to support their theories.

Example 3: The news organization is known for its credible reporting and investigative journalism.

What are the different forms of Credible?

As an adjective, “credible” can form comparative and superlative degrees:

• Positive: credible
• Comparative: more credible
• Superlative: most credible

The noun form is “credibility,” referring to the quality of being trusted and believed in.

Etymology of the word Credible

“Credible” comes from the Latin word credibilis, meaning “worthy of belief,” which itself is derived from credere, “to believe, trust.” This Latin root also gives us words like “credit” and “credo.” The word entered English in the late 14th century, carrying with it the strong implication of trustworthiness and reliability that it retains today.

Related Concepts

Understanding these related linguistic and logical concepts can further clarify the distinction between “believable” and “credible.”

• Subjectivity vs. Objectivity: Believability often leans towards subjectivity (how it appears to an individual), whereas credibility strives for objectivity (based on verifiable facts or reliable sources).
• Source Criticism: This concept involves evaluating the reliability and trustworthiness of sources, which is directly tied to a source’s credibility. It helps determine if information, even if believable, comes from a credible origin.

Examples from Media and Literature

• In news reporting, a journalist strives to present a credible account, backed by verifiable facts, even if some details might strain the immediate believability of the reader.
• A fictional character’s actions must be internally consistent and believable for the audience to suspend disbelief, even within an entirely non-credible fantastical world.
• “The most believable lies are those closest to the truth.” – This adage highlights that something can seem true (believable) without being factually correct or from a trustworthy source.
• When evaluating scientific claims, researchers look for credible evidence from peer-reviewed journals, not just claims that sound intuitively believable.

Practice Exercises

Choose the correct word to complete the sentence.

1. The witness was considered highly __________ because he had no motive to lie.
2. Her story about seeing a flying saucer was certainly interesting, but not entirely __________.
3. For a scientific theory to be accepted, it must be supported by __________ data.
4. The special effects made the dragon look incredibly __________, almost as if it were real.
5. A __________ leader inspires trust and confidence in their followers.

Answer Key

1. credible
2. believable
3. credible
4. believable
5. credible

Believable Synonyms

Synonym	Definition
Plausible	Seeming reasonable or probable.
Conceivable	Capable of being imagined or grasped mentally.
Creditable (in the sense of deserving praise)	Deserving public acknowledgment and praise. (Note: This is different from “credible” in meaning).
Feasible	Possible to do easily or conveniently.

Credible Synonyms

Synonym	Definition
Trustworthy	Able to be relied on as honest or truthful.
Reliable	Consistently good in quality or performance; able to be trusted.
Authoritative	Able to be trusted as being accurate or true; reliable.
Verifiable	Able to be checked or demonstrated to be true, accurate, or justified.

Frequently Asked Questions

Question 1: Can something be believable but not credible?
Yes, absolutely. A well-told lie can be believable because it sounds plausible or consistent, but it is not credible because it lacks truth and comes from a deceptive source. Similarly, a fictional story is believable if it draws you in, but it is not credible as a factual account.

Question 2: Is ‘credulous’ related to ‘credible’?
Yes, “credulous” shares the same Latin root credere (“to believe”). However, “credulous” means having or showing too great a readiness to believe things, often without sufficient evidence; it describes someone who is easily fooled or too trusting. It’s the opposite of being discerning about what is credible.

Question 3: When should I prioritize believability over credibility?
In creative writing, storytelling, or entertainment, believability is often prioritized to engage the audience and make the narrative compelling, even if the premise is fantastical. In fields like journalism, science, law, or any situation requiring factual accuracy and trust, credibility is paramount.

Conclusion

Understanding the distinction between “believable” and “credible” is essential for clear communication and critical thinking. While “believable” gauges how plausible something seems, “credible” assesses its trustworthiness and factual basis. Recognizing this difference allows you to discern not only if information could be true, but if it should be believed. Pro Tip: In professional contexts, always strive for your statements and sources to be both believable and, more importantly, demonstrably credible to maintain your reputation and foster trust.