invisible - Definition | Dictionary definition of invisible

Definition of invisible

impossible or nearly impossible to see; imperceptible by the eye

"the invisible man"

"invisible rays"

"an invisible hinge"

"invisible mending"

Synonyms:: unseeable; covert
secret or hidden; not openly practiced or engaged in or shown or avowed; imperceptible, unperceivable
impossible or difficult to perceive by the mind or senses; camouflaged
made invisible by means of protective coloring; concealed, hidden, out of sight
not accessible to view; infrared
having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end; lightless
giving no light; nonvisual
not resulting in vision; occult
hidden and difficult to see; ultraviolet
having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end; undetectable
not easily seen; unseeyn
not seen or perceived

Antonyms:: visible
capable of being seen; or open to easy view; seeable; perceptible
capable of being perceived by the mind or senses; circumpolar
(of a celestial body) continually visible above the horizon during the entire 360 degrees of daily travel; in sight
at or within a reasonable distance for seeing; ocular, visual
visible; macroscopic, macroscopical
visible to the naked eye; using the naked eye; gross, megascopic
visible to the naked eye (especially of rocks and anatomical features); microscopic, microscopical
visible under a microscope; using a microscope; subgross
too small to be visible to the naked eye; panoptic, panoptical
including everything visible in one view; telescopic
visible only with a telescope; viewable
capable of being viewed; show more antonyms...

not prominent or readily noticeable

"the invisible man"

Antonyms:: conspicuous
obvious to the eye or mind; indiscreet
lacking discretion; injudicious; attention-getting, eye-catching
seizing the attention; big, large, prominent
conspicuous in position or importance; bold
clear and distinct; crying, egregious, flagrant, glaring, gross, rank
conspicuously and outrageously bad or reprehensible; featured
made a feature or highlight; given prominence; in evidence
clearly to be seen; marked
singled out for notice or especially for a dire fate; outstanding, salient, spectacular, striking
having a quality that thrusts itself into attention; show more antonyms...