invisible
UK: ɪnˈvɪzəbl | US: ɪnˈvɪzəbəl
adj. unable to be seen; not visible to the eye
adj. (figuratively) unnoticed or ignored
The word "invisible" originates from Latin invisibilis, combining the prefix in- (meaning "not") with visibilis ("able to be seen"). The root vis- comes from videre ("to see"), a foundational Latin verb. Over time, visibilis evolved into Old French visible, and the negative form invisible entered Middle English in the 14th century. The morphemes reflect a logical progression: negation (in-) + perception (vis) + capability (-ible), encapsulating the concept of "not able to be seen."
The spy used an invisible ink to write secret messages.
Microorganisms are invisible without a microscope.
Her contributions to the project were often invisible to the team.
The magician made the coin seem invisible with a swift hand motion.
Air is invisible, but its effects can be felt everywhere.