The definition of unreal is something that is so odd, amazing or unusual it cannot be true or does not seem true.
If you said you saw Bigfoot, this is an example of a statement that would be considered unreal.
- not real, actual, or genuine; imaginary, fanciful, insubstantial, false, etc.
- Informal astounding, unbelievable, etc.: a hyperbolic use
- Not real or substantial; illusory.
- Slang So remarkable as to elicit disbelief; fantastic.
(comparative more unreal, superlative most unreal)
Negating prefix un- + adjective real