still unknown

Examples (10)

• The cause of the mysterious disappearance is still unknown.
• Despite extensive research, the exact origin of the virus remains still unknown.
• The final outcome of the negotiations is still unknown to the public.
• His whereabouts have been still unknown since he left the country.
• Many details surrounding the ancient civilization are still unknown to historians.
• The exact number of species in the deep ocean is still unknown.
• The perpetrator of the crime is still unknown to the authorities.
• It is still unknown how the changes will affect the local ecosystem.
• Her intentions for the future are still unknown to her closest friends.
• The full extent of the damage caused by the storm is still unknown.