Synonyms in Detail: implausible and unbelievable Usage & Differences

What context can I use each word in?

Learn when and how to use these words with these examples!

implausible

Example

The idea that aliens built the pyramids is implausible. [implausible: adjective]

Example

Her explanation for being late was implausible and hard to believe. [implausible: adjective]

unbelievable

Example

The plot twist in the movie was so unbelievable that it ruined the entire film. [unbelievable: adjective]

Example

His excuse for missing the meeting was completely unbelievable. [unbelievable: adjective]

Good things to know

Which word is more common?

Unbelievable is more commonly used than implausible in everyday language. Unbelievable is a versatile word that can be used in a variety of contexts, while implausible is less common and is more often used in academic or technical writing.

What’s the difference in the tone of formality between implausible and unbelievable?

Both implausible and unbelievable are formal words that are appropriate for use in academic or technical writing. However, unbelievable is also commonly used in informal conversation.

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