Definition of ab initio in English:

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ab initio

Pronunciation: /ˌab əˈniSHēˌō/


From the beginning (used chiefly in formal or legal contexts): the agreement should be declared void ab initio
More example sentences
  • Enormous as the difference undoubtedly is between these faculties in the two cases, the difference is conceded not to be one existing ab initio.


Starting from the beginning: he was instructing ab initio pilots
More example sentences
  • While ab initio prediction is clearly the most difficult, it is arguably the most useful approach.
  • It is likely that the ab initio approaches will help reduce some of the limitations of comparative modeling.
  • The first ab initio candidates will be selected by the middle of next month.


Early 17th century: Latin.

Words that rhyme with ab initio

ex officio

For editors and proofreaders

Syllabification: ab in·i·ti·o

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