Definition of unbelievable
- the plot is unreal and unbelievable
- the destruction was unbelievable
- made an unbelievable catch in center field
a completely unbelievable story about why there was lipstick on his collar
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unbelievable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: difficult or impossible to believe
—used to describe something that is so good, bad, etc., that it is difficult to believe
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