'Worthlessness' in the Bible

So {I had to inherit} months of worthlessness, and nights of misery are apportioned to me.

Let him not trust in emptiness--he will be deceiving himself-- for worthlessness will be his recompense.

And his breath [is] like an overflowing river; it reaches up to [the] neck to shake [the] nations with [the] sieve of worthlessness; and a bridle that leads astray [is] on [the] jawbones of [the] peoples.