Main entry: inconspicuous, invisible
Definition: not prominent or readily noticeable
Usage: he pushed the string through an inconspicuous hole; the invisible man
Antonyms: conspicuous
Definition: obvious to the eye or mind
Antonyms: noticeable
Definition: capable or worthy of being perceived
Main entry: unseeable, invisible
Definition: impossible or nearly impossible to see; imperceptible by the eye
Usage: the invisible man; invisible rays; an invisible hinge; invisible mending
Definition: capable of being seen; or open to easy view
Antonyms: unconcealed
Definition: not concealed or hidden