Words similar to unclear

Example sentences for: unclear

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

It is unclear whether fewer first responders in the aggregate would have been in the Twin Towers if there had been an integrated response, or what impact, if any, redundant searches had on the total number of first responder fatalities.
(For unclear reasons, the FDA has stalled on a 1994 application to allow the industry to irradiate beef and veal.)
The clinical significance of such small embolic particles is unclear, and difficult to resolve since the completeness of debris entrapment by any distal protection device is impossible to determine in clinical practice.
However, caution should be used when interpreting this result given that it is unclear to what extent household wealth and a strata's level of planning/drainage are confounded.
But the paper goes on to admit that it's unclear how many of the criminals affected are like the Ethiopian woman and how many are more serious felons.