Wrong; faulty; out of order; improper; as, it may not be amiss to ask advice. Used only in the predicate of a sentence
If you say that something would not go amiss or would not come amiss, you mean that it would be pleasant and useful. A bit of charm and humour would not go amiss. if something is amiss, there is a problem = wrong (miss )
If you say that something is amiss, you mean there is something wrong. Their instincts warned them something was amiss Something is radically amiss in our health care system. = wrong