unsuspecting
Definitions
Not aware of danger, suspicion, or something unpleasant.
Trusting and free from doubt or wariness.
Examples
The unsuspecting tourist was easily tricked by the street performer's clever ruse.
The predator waited patiently in the tall grass for an unsuspecting deer to wander by.
She walked into the surprise party, completely unsuspecting of the celebration her friends had planned.
Synonyms
gullible naive trusting unsuspicious credulous ingenuous unwary