Words similar to unknown

Example sentences for: unknown

How can you use “unknown” in a sentence? Here are some example sentences to help you improve your vocabulary:

Yes--and he may also be "John Q. Public," "Joe Zilch," the "Common Man," and the "Unknown Citizen" invoked by W.H.
In fact, an investigation of Brn3c heterozygotic mice showed no additional effect on hearing loss due to haploinsufficiency in these mice [ 35 ] . Our data on Brn3c null mouse mutants nevertheless suggest that the high to low frequency progressive hearing loss in humans may correlate with the unknown factor(s) that mediate apical spiral neuron survival into adulthood.
The power of the study was to detect 40% improvement in t PTEF / t E . We could have easily missed a much smaller response because of the sample size, although the clinical significance of such a response is unknown.
Causes of death were missing or unknown for 45.
The Globe acknowledges this incident but attributes Hillary's behavior to the heretofore unknown baba ghanouj syndrome.