Valid but irregular

Valid but irregular is a term applied in Christian churches which have a concept of Holy Orders, such as the Anglican churches, to sacramental actions by someone who is able, due to their already being ordained to the appropriate orders, to carry out the action but does not have the required authority to do so. The term is analogous to that of "valid but illicit" used in the Roman Catholic Church.

Notable examples of acts declared "valid but irregular" include:

...
Wikipedia