Meaning : Impossible or nearly impossible to see. Imperceptible by the eye.
							Example : 
							The invisible man.
							Invisible rays.
							An invisible hinge.
							Invisible mending.
							
Synonyms : unseeable
Meaning : Not prominent or readily noticeable.
							Example : 
							He pushed the string through an inconspicuous hole.
							The invisible man.
							
Synonyms : inconspicuous
Obvious to the eye or mind.
A tower conspicuous at a great distance.