unclear

Its actual meaning is unclear, though some say it means "so-so" or "maybe this, maybe that".

It is currently unclear how long work on his other two dwellings will take; however, the scope of the work suggests that it could well take several years before the newly constructed megamansion is completed.

Until now, it had been unclear how ZAK detects ribosomes that have collided and uses that information to activate signaling pathways.

It remains unclear whether subclade K will reduce the effectiveness of this year’s flu shot.

It is unclear how many of them are Indian nationals.