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Obstacle vs Optical - What's the difference?

obstacle | optical |

As a noun obstacle

is something that impedes, stands in the way of, or holds up progress.

As an adjective optical is

of, or relating to sight; visual.

obstacle

English

(Obstacle course)

Noun

(en noun)
  • Something that impedes, stands in the way of, or holds up progress
    • A big obstacle to understanding the manual was that it had been poorly translated from the Japanese.

    Synonyms

    * impediment * hindrance * hurdle * See also

    optical

    English

    Adjective

    (en adjective)
  • Of, or relating to sight; visual
    • Strabismus is an optical defect.
    (rfex)
  • Designed to assist or enhance sight
    • A microscope is an optical instrument.
  • Of, or relating to optics
    • Refraction is an optical effect.
  • Of, or relating to visible light
    • Optical telescopes don't work when it is cloudy.
  • Incorporating light-sensitive devices
    • An optical switch opens the door automatically.

    Anagrams

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