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'.
(..) Little kiss of welcome. No! Yes... Remember, she's not to be harmed... or she'll be worthless in trade! Pretty bird. Pretty feathers. Build her a nest so she can hide. Too many hawks around here! (..)1958 The Vikings
(..) Quick, my ladies, inside. Steersman, cut to the wind! Forecastle, men! Forward! Remember, she's not to be harmed... or she's worthless in trade! Pull forward the bowline! Bend your backs. No! No! Bridget! My lady! (..)1958 The Vikings