Import Validation Settings

Select Allow incomplete entries to import entries where they hold no data for a field that is mandatory.
Select Allow over complete entries to import entries where they have more fields than the termbase entries. The additional fields and data are not added to the existing termbase definition.
Select Ignore sub languages to ignore sublanguages when importing entries.

If you do not select this option, the Import Wizard adds terms to the correct sub-language. However, if the input file contains sub-languages but the termbase does not, the import wizard will not create the sub-language indexes as part of the import.
If the import file contains sublanguages, but the termbase does not all entries are imported to the relevant super-language.
If the import file does not contain sublanguages but the termbase does, all entries are imported to the first sub-language index in the termbase.
If both the import file and the termbase contain sublanguages, then all entries from the import file are imported to the first sub-language index in the termbase. This applies whether or not the sublanguages in the import file and the termbase match.