lack

A defect or failing; moral or spiritual degeneracy.

A deficiency or need (of something desirable or necessary); an absence, want.

To be without, to need, to require.

“My life lacks excitement.”

To be short (of or for something).

“He'll never lack for company while he's got all that money.”

To be in want.

To see the deficiency in (someone or something); to find fault with, to malign, reproach.