Obscure
Mysterious
Unfamiliar
Alien
Secret
Undiscovered
...
If something is unknown it is not known by someone or something.
The antonym of unknown is known. When you know something then you won't not know that thing that you know. Unknown means to not know something.
something that is unknown
You cannot portray identification upon something unknown. It must be something known only to the user, or be something the user is (such as a fingerprint, retina scan or DNA sample) or something the user has (such as an ID card).
Something Unknown Is Doing We Don't Know What - 2009 is rated/received certificates of: Netherlands:AL
Unknown something.
scientific method, in which a hypothesis is formed, tested through experimentation, and either validated or rejected based on the results. This systematic process allows for the systematic investigation and understanding of unknown variables or phenomena.
an unknown. eg x+1=3 means something plus 1=3. the unknown, or 'something' must be 2. therefore x=2
Something of unknown origin is often referred to as "anomaly" or "mystery." In scientific contexts, it may be called "an unknown" or "unsourced." In more casual terms, terms like "enigmatic" or "unidentified" can also apply, depending on the context.
How can you have an unknown innovation? Innovation means to make something new, ie to create a known from the unknown. So, by definition an innovation should be known.
faith
that fact is unknown and will remain to be unknown until britney herself says something about it, not the press