unseeable

Synonyms:

invisible

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:

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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