It is regarded as a binary of long and as yet unascertained period.
To which of these classes the Loucheux belongs, has hitherto been unascertained.
This was a process involving an unascertained mathematical principle.
There was no regularly organized militia there; only a few independent companies of doubtful, or unascertained, loyalty.
This is an ancient pear of unascertained origin, though the pomologists Turpin and Poiteau and others have regarded it as French.
How far they affect that of man, except indirectly, is unascertained.
Revenge, he had called it, and called it still, for unascertained and undefined injuries.
The boundaries in the direction of the Tyrol are undescribed, probably because they were unascertained.
Into how many divisions this Floridian population fell, and amongst what known families (if any) it was divided, is unascertained.
Each of these divisions (of which the value is unascertained) are members of the Cherokee confederacy.
early 15c., "to inform, to give assurance," from Anglo-French acerteiner, Old French acertener "to assure, certify" (13c.), from a "to" (see ad-) + certain "certain" (see certain). Modern meaning of "find out for sure by experiment or investigation" is first attested 1794. Related: Ascertained; ascertaining.