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Efficiently vs Undefined - What's the difference?

efficiently | undefined |

As an adverb efficiently

is in an efficient manner.

As an adjective undefined is

lacking a definition or value.

efficiently

English

Adverb

(en adverb)
  • In an efficient manner.
  • * {{quote-news
    • , year=2011 , date=October 1 , author=Phil Dawkes , title=Sunderland 2 - 2 West Brom , work=BBC Sport citation , page= , passage=The second half was a less open affair, in which West Brom grew increasingly and efficiently conservative.}}

    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