Mistruth

His claim that he didn't eat the last cookie was a mistruth because he had cookie crumbs on his shirt.

The driver's statement that they had not been speeding was a mistruth as they were caught on camera going over the speed limit.

The police officer's mistruth about the evidence in the case led to a wrongful conviction.

The student's excuse for not turning in their homework was a mistruth.

The athlete's justification for taking performance-enhancing drugs was a mistruth.

His mistruth about the direction led us to get lost.