adj.不犯錯(cuò)誤的；一貫準(zhǔn)確的；萬無一失的

The antique dealer has an unerring ability to spot a fake. 那古董商慧眼識珠，鑒別假貨從不出錯(cuò)。

You can trust his unerring taste in cloths. 你可以相信他的衣著品位，絕對沒問題。

He have an unerring knack of saying the wrong thing. 他有個(gè)出言必失的本事。

adv.無過失地；正確地