remain unknown

Examples (10)

• The true identity of the donor will remain unknown to the public.
• Despite extensive research, the cause of the mysterious illness continues to remain unknown.
• For years, the location of the lost treasure had remained unknown to everyone.
• It is crucial that certain details remain unknown to prevent security breaches.
• Should her whereabouts remain unknown, a search party will be dispatched.
• The precise impact of the new policy might remain unknown for several months.
• Many ancient civilizations still remain largely unknown to modern historians.
• He wished for his good deeds to remain unknown, seeking no recognition.
• Even after the investigation, the motive for the crime remained unknown.
• The full extent of the damage could remain unknown until thorough inspections are completed.