The boots may be nice, but they're 'worthless' if they don't fit you.
This land is 'worthless' [='useless'] for agriculture.
She's depressed and believes that she's 'worthless'.
(..) Gentlemen, something has come up. Please excuse me. - Monsieur Larocque. - Yes. Is this vase of great value? It is a worthless imitation. Good. But that desk was... ...priceless. - Clouseau. - Oh, yes. (..)2006 The Pink Panther