invisible

If you are invisible, you can't be seen with the naked eye, but you can do an awful lot of spying. When you do something embarrassing, you often wish you were invisible.

Germs are invisible, as are odors. A good question to ask someone is whether they would rather be able to fly or be invisible. Flight gives you freedom to travel, but if you are invisible, you have the ability to sneak around and see things you would not normally be able to see. Which would you prefer?

Definitions of invisible
  1. adjective
    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
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    Antonyms:
    seeable, visible
    capable of being seen; or open to easy view
    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
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  2. adjective
    not prominent or readily noticeable
    “the invisible man”
    synonyms: inconspicuous
    obscure, unnoticeable
    not drawing attention
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    Antonyms:
    conspicuous
    obvious to the eye or mind
    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, prominent, salient, spectacular, striking
    having a quality that thrusts itself into attention
    indiscreet
    lacking discretion; injudicious
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