annulment: Technically called a decree of nullity , an annulment of a marriage is a decision by a church court, confirmed by an appellate court, that a putative marriage was not valid from the start because something was lacking: full knowledge and consent by both parties, freedom from force or grave fear, or some other factor needed for a valid marriage. "Putative" (meaning apparent or seeming) is a key word in the entire process: It refers to a marriage in which at least one party acted in good faith, believing it was valid at the time it took place. Children from a putative marriage are considered legitimate even if the marriage is later ruled to be invalid. This has been a source of one of the major popular misunderstandings of annulments; namely, that an annulment somehow makes the children of that union illegitimate. Church law explicitly rejects this interpretation, saying that children of a putative marriage are legitimate even if the marriage is later judged to be invalid.