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Opt vs Undefined - What's the difference?

opt | undefined |

As an initialism opt

is .

As an adjective undefined is

lacking a definition or value.

opt

English

Verb

(en verb)
  • To choose; to select.
    • He opted not to go.
    She opted for the salad rather than the steak.
  • * {{quote-news
    • , year=2011 , date=September 2 , author=Phil McNulty , title=Bulgaria 0-3 England , work=BBC citation , page= , passage=The Italian opted for Bolton's Cahill alongside captain John Terry - and his decision was rewarded with a goal after only 13 minutes. Bulgaria gave a hint of defensive frailties to come when they failed to clear Young's corner, and when Gareth Barry found Cahill in the box he applied the finish past Nikolay Mihaylov.}}

    Derived terms

    * opt in * opt out * co-opt

    Related terms

    * option * optional

    Anagrams

    * ----

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined