indefinitely
In a manner that is not definite.
Example
“an indefinitely determined fossil”
Other meanings
For a long time, with no defined end.
Example sentences
Where this comes from
This definition is adapted from “indefinitely” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.