valueless

1. ADJ If you describe something as valueless, you mean that it is not at all useful. 無價值的

Such attitudes are valueless unless they reflect inner cognition and certainty. 這種態(tài)度如果不能反映內(nèi)心的認知和確定性就毫無價值。

...commercially valueless trees. ...沒有商業(yè)價值的樹木。