He unsuspectably slipped the extra documents into the file, so no one would suspect his intentions.

The unsuspecting hikers walked past the rare orchid without noticing it.

The investigator uncovered an unsuspected motive behind the crime.

An unsuspect witness revealed new evidence that changed the course of the trial.

The modest cottage proved to be an unsuspectable hideout for the fugitives.

The unsuspective tourist wandered down the narrow street, unaware of the pickpocket shadowing him.

The unsuspectful shopkeeper handed the stranger the keys, believing him to be an honest customer.