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Probably vs Undefined - What's the difference?

probably | undefined |

As an adverb probably

is in all likelihood.

As an adjective undefined is

lacking a definition or value.

probably

English

Alternative forms

* (colloquial)

Adverb

(en adverb)
  • In all likelihood.
  • *{{quote-book, year=1922, author=(Ben Travers), title=(A Cuckoo in the Nest)
    • , chapter=1 citation , passage=“[…] the awfully hearty sort of Christmas cards that people do send to other people that they don't know at all well. You know. The kind that have mottoes
  • *{{quote-magazine, year=2013, month=May-June, author= William E. Conner
    • , title= An Acoustic Arms Race , volume=101, issue=3, page=206-7, magazine=(American Scientist) , passage=Earless ghost swift moths become “invisible” to echolocating bats by forming mating clusters close

    Synonyms

    * (in all likelihood) likely, perhaps, maybe, possibly, presumably, most likely, doubtless, in all probability, perchance, as likely as not, as like as not

    Statistics

    * English modal adverbs English hedges 1000 English basic words

    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