'Unable' in the Bible

Then all the king's advisors came in, but they were unable to read the writing or tell the king what it meant.

Take note that the advisors and enchanters were brought before me to read the writing and explain its meaning, but they were unable to do so.

Because of this, the administrators and regional authorities tried to bring allegations of dereliction of duty in government affairs against Daniel, but they were unable to find any charges of corruption. Daniel was trustworthy, and no evidence of negligence or corruption could be found against him.

"After he had spoken to me like this, I bowed my face to the ground, unable to speak.