1. the quality or state of being furtive; secretive or stealthy behavior done to avoid notice or detection
Usage: uncountable noun; formal register

Examples

• The furtiveness of his glances suggested he was hiding something.
• She moved with furtiveness through the darkened hallway.
• The spy's furtiveness made him difficult to track.
• His furtiveness about his whereabouts raised suspicion.
• The cat approached the bird with furtiveness and caution.
• There was a furtiveness in the way he pocketed the letter.