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Inefficient vs Undefined - What's the difference?

inefficient | undefined |

As adjectives the difference between inefficient and undefined

is that inefficient is inefficient while undefined is lacking a definition or value.

inefficient

English

(wikipedia inefficient)

Adjective

(en adjective)
  • Not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures.
    • Celery is an inefficient food.
  • Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workers; an inefficient administrator.
    • Jessica was terribly inefficient at cleaning, so her brother usually had to clean the whole room.

    Antonyms

    * efficient

    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